{"id":1,"date":"2025-01-25T17:31:48","date_gmt":"2025-01-25T17:31:48","guid":{"rendered":"https:\/\/ecofosa.ro\/?p=1"},"modified":"2026-11-04T11:13:23","modified_gmt":"2026-11-04T09:13:23","slug":"fosa-septica-ce-trebuie-sa-stii","status":"publish","type":"post","link":"https:\/\/ecofosa.ro\/en\/blog\/fosa-septica-ce-trebuie-sa-stii\/","title":{"rendered":"What you need to know before buying a septic tank"},"content":{"rendered":"<style>.eco-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px;margin:16px 0 28px}.eco-card{display:flex;flex-direction:column;border:1px solid #dfe8d8;border-radius:8px;padding:12px;text-decoration:none!important;color:#1f2a1f;background:#fff;transition:box-shadow .2s}.eco-card:hover{box-shadow:0 4px 14px rgba(47,93,30,.15)}.eco-card img{width:100%;height:auto;aspect-ratio:1\/1;object-fit:contain;margin-bottom:8px}.eco-card__t{font-weight:600;font-size:15px;line-height:1.35}.eco-card__l{font-size:13px;color:#5d6b5d;margin:4px 0 8px}.eco-card__c{margin-top:auto;font-size:14px;color:#3d7a1c;font-weight:600}<\/style>\n\n\n\n<p class=\"wp-block-paragraph\">Choosing a septic tank is not only a technical decision, but also an administrative and practical one. To choose correctly, three things matter: <strong>how many people live in the home<\/strong>, <strong>what type of soil you have<\/strong> (whether it allows drainage) and <strong>where the water goes<\/strong> after the septic tank. Below you will find the right models for each situation, with direct links to the products.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. Which septic tank to choose, by number of people<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The septic tanks below discharge to drainage (an infiltration field or percolation tunnel). They are suitable when the soil is sandy or loamy and water soaks in easily.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">For 2\u20134 people (small house, holiday home)<\/h3>\n\n\n\n<div class=\"eco-cards\"><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/fosa-septica-eco-imhoff-4\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2025\/12\/Fosa-IMHOFF-1200x800-1-300x300.jpg\" alt=\"Fos\u0103 septic\u0103 ECO Imhoff 4\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">ECO Imhoff 4 septic tank<\/span><span class=\"eco-card__l\">2\u20134 people \u00b7 the most compact<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/fosa-septica-cu-evacuare-eco-water-2-0-2000-l\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2025\/12\/Fosa-septica-PL-2000L-300x300.jpg\" alt=\"Fos\u0103 septic\u0103 ECO Water 2.0\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">ECO Water 2.0 septic tank<\/span><span class=\"eco-card__l\">2\u20134 people \u00b7 2,000 L, two chambers<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/fosa-septica-ecobunker-2000-l\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2026\/01\/Fosa-EcoBunker-2000-L-300x300.jpg\" alt=\"Fos\u0103 septic\u0103 ECO Bunker 2000 L\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">ECO Bunker 2000 L septic tank<\/span><span class=\"eco-card__l\">2\u20134 people \u00b7 2,000 L, three chambers<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">For 4\u20136 people (family, permanent home)<\/h3>\n\n\n\n<div class=\"eco-cards\"><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/fosa-septica-eco-imhoff-6\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2025\/12\/Fosa-IMHOFF-1200x800-1-300x300.jpg\" alt=\"Fos\u0103 septic\u0103 ECO Imhoff 6\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">ECO Imhoff 6 septic tank<\/span><span class=\"eco-card__l\">4\u20136 people \u00b7 Imhoff settling<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/fosa-septica-cu-evacuare-water3000\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2025\/12\/Fosa-septica_EciDropWater-PL_3000L-2-c-300x300.jpg\" alt=\"Fos\u0103 septic\u0103 ECO Water 3.0\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">ECO Water 3.0 septic tank<\/span><span class=\"eco-card__l\">4\u20136 people \u00b7 3,000 L<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/fosa-septica-eco-bunker-3000-l\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2026\/01\/Fosa-EcoBunker-2000-L-300x300.jpg\" alt=\"Fos\u0103 septic\u0103 ECO Bunker 3000 L\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">ECO Bunker 3000 L septic tank<\/span><span class=\"eco-card__l\">4\u20138 people \u00b7 3,000 L, three chambers<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">For 6\u201311 people (large house, small guesthouse)<\/h3>\n\n\n\n<div class=\"eco-cards\"><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/fosa-septica-eco-imhoff-10\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2025\/12\/Fosa-IMHOFF-1200x800-1-300x300.jpg\" alt=\"Fos\u0103 septic\u0103 ECO Imhoff 10\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">ECO Imhoff 10 septic tank<\/span><span class=\"eco-card__l\">8\u201310 people \u00b7 1,500 L<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/fosa-septica-cu-evacuare-water-5-0-5000-l\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2025\/12\/Fosa-septica_EciDropWater-PL_3000L-2-c-300x300.jpg\" alt=\"Fos\u0103 septic\u0103 ECO Water 5.0\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">ECO Water 5.0 septic tank<\/span><span class=\"eco-card__l\">8\u201311 people \u00b7 5,000 L<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">For guesthouses, restaurants or buildings with more users, see <a href=\"https:\/\/ecofosa.ro\/en\/product-category\/fose-industriale\/\">ECR Grand industrial septic tanks<\/a> and the page <a href=\"https:\/\/ecofosa.ro\/en\/horeca-turism\/\">solutions for hospitality and tourism<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. If the soil does not allow drainage or you want to discharge treated water<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Clay soil, high water table, small yard<\/strong> \u2013 choose a <strong>holding tank<\/strong>solution without drainage: a watertight tank that is emptied periodically. Also read <a href=\"https:\/\/ecofosa.ro\/en\/blog\/fosa-septica-fara-drenaj-vidanjabila-cand-este-solutia-corecta-si-in-ce-situatii-se-recomanda\/\">when a septic tank without drainage is the right choice<\/a>.<\/li>\n\n<li><strong>You want to discharge water into a stream, ditch or watercourse<\/strong> \u2013 you need a <strong>treatment plant<\/strong> with activated sludge, which treats the water much better than a conventional septic tank.<\/li>\n<\/ul>\n\n\n\n<div class=\"eco-cards\"><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/bazin-grand-10000-litri\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2025\/02\/Bazin-Industrial-10000-L-600x600.jpg\" alt=\"Bazin subteran Grand 10000 L\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">Grand 10000 L underground tank<\/span><span class=\"eco-card__l\">holding tank \u00b7 10,000 L<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/statie-de-epurare-eco-fa-5\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2025\/01\/Epurare-FA-5-300x300.jpg\" alt=\"Sta\u021bie de epurare ECO FA 5\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">ECO FA 5 treatment plant<\/span><span class=\"eco-card__l\">treatment plant \u00b7 4\u20136 people<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/statie-de-epurare-eco-fa-10\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2026\/03\/Bazin-Epurare-FA-10-300x300.jpg\" alt=\"Sta\u021bie de epurare ECO FA 10\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">ECO FA 10 treatment plant<\/span><span class=\"eco-card__l\">treatment plant \u00b7 6\u201310 people<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">3. The hassle-free option: septic tank with installation included<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you do not already have an installation team, choose a <a href=\"https:\/\/ecofosa.ro\/en\/product-category\/fose-septice\/pachete-fosa-cu-montaj\/\">complete package with installation<\/a>. It includes the septic tank, excavation, 10 m of drainage, the bioactivator and commissioning.<\/p>\n\n\n\n<div class=\"eco-cards\"><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/fosa-septica-eco-imhoff-4-cu-montaj\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2025\/01\/ChatGPT-Image-1-feb.-2026-21_50_31-300x300.png\" alt=\"Pachet ECO Imhoff 4 cu montaj\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">ECO Imhoff 4 package with installation<\/span><span class=\"eco-card__l\">package \u00b7 2\u20134 people<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/pachet-complet-fosa-septica-pentru-4-6-persoane\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2025\/01\/Eco-Imhoff-6-Pachet-300x300.png\" alt=\"Pachet ECO Imhoff 6 cu montaj\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">ECO Imhoff 6 package with installation<\/span><span class=\"eco-card__l\">package \u00b7 4\u20136 people<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/pachet-fosa-septica-eco-imhoff-10-cu-montaj\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2025\/01\/Pachet-Montaj-Fosa-Eco-Imhoff-10-300x300.png\" alt=\"Pachet ECO Imhoff 10 cu montaj\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">ECO Imhoff 10 package with installation<\/span><span class=\"eco-card__l\">package \u00b7 6\u201310 people<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">4. What to tell us before ordering<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">To recommend the right model, we need:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>the number of people in the household (or the daily wastewater flow);<\/li>\n\n<li>the soil type (clay, sandy, loamy) and whether water appears in the pit when digging;<\/li>\n\n<li>the depth at which the drain pipe leaves the house;<\/li>\n\n<li>the distance from the house, well and property boundary;<\/li>\n\n<li>whether you have room for drainage or prefer a holding tank.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">With this information we avoid undersizing and problems after installation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. Useful accessories for installation<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If the septic tank is installed deeper, you need an extension collar for the manhole. For soils where there is no room for conventional drainage, percolation tunnels disperse the water over a smaller area. See all <a href=\"https:\/\/ecofosa.ro\/en\/product-category\/accesorii-fose-septice\/\">septic tank accessories<\/a>.<\/p>\n\n\n\n<div class=\"eco-cards\"><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/manson-extensie-gura-vizitare-fosa-septica-60-cm\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2026\/11\/manson-extensie-fosa-60-cm-ecofosa-300x300.webp\" alt=\"Man\u0219on extensie gur\u0103 de vizitare 60 cm\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">Manhole extension collar 60 cm<\/span><span class=\"eco-card__l\">manhole extension \u00b7 60 cm<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/tunel-percolare-apollo-150-150-litri\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2026\/11\/tunel-percolare-apollo-150-ecofosa-300x300.webp\" alt=\"Tunel de percolare APOLLO 150\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">APOLLO 150 percolation tunnel<\/span><span class=\"eco-card__l\">percolation tunnel \u00b7 150 L<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><a class=\"eco-card\" href=\"https:\/\/ecofosa.ro\/en\/product\/bioactivatori_ecofosa\/\"><img decoding=\"async\" src=\"https:\/\/ecofosa.ro\/wp-content\/uploads\/2026\/02\/Cutie-bioactivatori-300x300.jpg\" alt=\"Bioactivatori Ecofosa\" width=\"300\" height=\"300\" loading=\"lazy\" title=\"\"><span class=\"eco-card__t\">Ecofosa bioactivators<\/span><span class=\"eco-card__l\">bacterial start-up and maintenance<\/span><span class=\"eco-card__c\">View product \u2192<\/span><\/a><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">6. What to do (and not do) after installation<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fill the septic tank with water before burying it<\/strong> and add the bioactivator at first use.<\/li>\n\n<li><strong>Schedule emptying<\/strong> \u2013 usually every 2\u20134 years, depending on use.<\/li>\n\n<li><strong>Do not connect the plumbing<\/strong> until installation is fully complete.<\/li>\n\n<li><strong>Do not store heavy objects or drive<\/strong> over the septic tank unless it has a concrete chamber and a load-bearing cover.<\/li>\n\n<li><strong>Do not use harsh chemicals<\/strong> (industrial chlorine, non-biodegradable detergents) \u2013 they destroy the bacteria that treat the water.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Need help choosing?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Write to us via the <a href=\"https:\/\/ecofosa.ro\/en\/contact\/\">contact page<\/a> or call <a href=\"tel:+40741228382\">+40 741 228 382<\/a> and we will recommend the right model, with price and delivery time.<\/p>","protected":false},"excerpt":{"rendered":"<p>Alegerea unei fose septice nu este doar o decizie tehnic\u0103, ci \u0219i una administrativ\u0103 \u0219i practic\u0103. Ca s\u0103 alegi corect, conteaz\u0103 trei lucruri: c\u00e2te persoane folosesc locuin\u021ba, ce fel de sol ai (permite sau nu drenaj) \u0219i unde ajunge apa dup\u0103 fos\u0103. Mai jos g\u0103se\u0219ti modelele potrivite pentru fiecare situa\u021bie, cu link direct c\u0103tre produs. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":803,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"_breakdance_hide_in_design_set":false,"_breakdance_tags":"","footnotes":""},"categories":[1],"tags":[343,345,346,342,344],"class_list":["post-1","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-achizitie","tag-ce-sa-stii","tag-ecofosa","tag-fosa-septica","tag-ghid"],"_links":{"self":[{"href":"https:\/\/ecofosa.ro\/en\/wp-json\/wp\/v2\/posts\/1","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecofosa.ro\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecofosa.ro\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecofosa.ro\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ecofosa.ro\/en\/wp-json\/wp\/v2\/comments?post=1"}],"version-history":[{"count":4,"href":"https:\/\/ecofosa.ro\/en\/wp-json\/wp\/v2\/posts\/1\/revisions"}],"predecessor-version":[{"id":1565,"href":"https:\/\/ecofosa.ro\/en\/wp-json\/wp\/v2\/posts\/1\/revisions\/1565"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ecofosa.ro\/en\/wp-json\/wp\/v2\/media\/803"}],"wp:attachment":[{"href":"https:\/\/ecofosa.ro\/en\/wp-json\/wp\/v2\/media?parent=1"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecofosa.ro\/en\/wp-json\/wp\/v2\/categories?post=1"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecofosa.ro\/en\/wp-json\/wp\/v2\/tags?post=1"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}