Sanitify
Water Treatment

Probiotic Residential Water Treatment — Purify Wells, Tanks & Rainwater Systems

Sanitify probiotic water treatment purifies household wells, rainwater tanks and storage cisterns, reducing bacteria, biofilm and algae naturally.

Shop the range All Water Treatment
100%
Chemical-free probiotic treatment
24/7
Protection that keeps working between doses
11
Countries served across Europe

Start here

Recommended products

View all products
Probiotic Animal Water Cleaner 5L | Livestock Water Care

Probiotic Animal Water Cleaner 5L | Livestock Water Care

€299 View
Probiotic Drops Concentrate | Multi-Purpose Probiotic Booster

Probiotic Drops Concentrate | Multi-Purpose Probiotic Booster

€35 View

Why it works

Why Homeowners Use Probiotic Water Treatment

  • Sanitify probiotic treatment reduces E. coli, Enterococcus, and biofilm in household wells, rainwater tanks, and water storage cisterns
  • Bacillus bacteria colonise tank walls and pipe surfaces — preventing algae growth and biofilm accumulation between treatments
  • No chemical residues in treated water — safe for drinking, cooking, garden irrigation, and livestock watering

Add, Wait, Drink Clean

Add Sanitify to your well, rainwater tank, or storage cistern at 5ml per 1,000L. For well treatment, pour the dose directly into the well shaft with the pump running. Bacillus bacteria activate within 1–2 hours and begin digesting organic matter and biofilm. Re-dose every 4–6 weeks for continuous protection.

Modern home living room — probiotic water treatment for residential wells and drinking water

Eliminate Bacteria and Algae From Your Home Water Supply

Private wells and rainwater harvesting tanks are frequent sources of household water contamination — E. coli from surface water infiltration, Enterococcus from nearby animal activity, and biofilm from stagnant pipe sections. Sanitify Bacillus bacteria continuously manage bacterial levels in stored water — maintaining safety between treatments with no chemical smell, no residue, and no waiting period before use.

Rainwater tanks and cisterns develop green algae growth during summer months, driven by sunlight exposure and organic nutrient input from roof runoff. Algae creates taste and odour problems and fouls filter screens. Sanitify prevents algae establishment by competing for the organic nutrients algae require — maintaining clear, odour-free water throughout summer without manual scrubbing or chemical algaecide.

How Bacillus Works in Residential Water Systems

Sanitify for residential use contains Bacillus subtilis — a naturally occurring soil bacterium found in all healthy water environments. In wells and tanks, Bacillus bacteria colonise submerged surfaces and produce biosurfactants that disrupt biofilm and enzymes that digest the organic matter bacteria and algae require. The result is biologically stable water — low in pathogenic bacteria, free from algae, and without the chemical taste of chlorine.

Close-up of Bacillus bacteria colonies used in Sanitify's probiotic residential water treatment

Residential Water Treatment Applications

Private bored and dug wells for drinking and household use | Rainwater harvesting tanks (above-ground and underground) | Concrete and plastic water storage cisterns | Gravity-fed water distribution systems in rural properties | Garden water butts and irrigation tanks | Holiday homes and seasonal water systems

Purify Your Home Water Supply

Home dining room — clean, safe drinking water for household wells and rainwater systems

Trusted in the field

What customers are saying

Our well water had a persistent smell no filter seemed to fix. Sanitify's treatment cleared it up within a couple of weeks.
Mari-Liis A.
We've got an older well and were worried about biofilm build-up. This has been the easiest fix we've tried.
Rein K.
No more scrubbing the tank every few months. It just stays cleaner.
Sirje P.

Good to know

Frequently asked questions

Is Sanitify safe for drinking water in a private well?
Sanitify contains naturally occurring Bacillus subtilis found in all healthy water environments. At 5ml per 1,000L, treated water is safe for drinking and cooking. Continue regular water testing per local health authority guidelines.
How do I treat a private well with Sanitify?
Pour 5ml of Sanitify per 1,000L directly into the well shaft with the pump running. Allow 4–6 hours for distribution. Re-dose every 4–6 weeks and after heavy rainfall events.
Will Sanitify remove the green algae from my rainwater tank?
For an existing algae-covered tank, do a manual cleanout first then start Sanitify treatment to prevent regrowth. Sanitify prevents new algae growth very effectively.
Does Sanitify affect the taste of well water?
Sanitify is tasteless and odourless at recommended doses. Users report well water tastes cleaner after treatment — the result of reduced biofilm and organic matter that causes earthy or musty taste notes.
Can I use Sanitify in a well that also supplies garden irrigation?
Yes — Sanitify-treated water is safe for garden irrigation with no negative effects on plants, soil, or wildlife.
How often should I test my well water if using Sanitify?
Continue testing according to local health authority guidelines — typically twice yearly for private wells. Sanitify reduces contamination risk but does not replace regular water quality testing.
Can Sanitify treat a well contaminated with E. coli?
Start with a double initial dose (10ml per 1,000L). If E. coli persists after 2 treatment cycles, consult your local environmental health authority as a structural solution may be required.
Does Sanitify work in a concrete underground cistern?
Yes — Bacillus bacteria colonise concrete surfaces effectively and digest the biofilm and algae on cistern walls. Dose at 5ml per 1,000L, re-dose every 6 weeks.
Is Sanitify effective in a holiday home water system unused for months?
Yes — dose the water system before leaving and re-dose on arrival. Sanitify prevents stagnant water biofilm from establishing in pipes and storage tanks during non-use periods.
Can I use Sanitify alongside a UV water purifier?
Yes — UV eliminates actively circulating bacteria while Sanitify manages biofilm on tank and pipe surfaces that UV cannot reach.
Does Sanitify affect the water hardness or mineral content of well water?
No — Sanitify does not affect water hardness, pH, or mineral content at recommended doses.
Is Sanitify safe for fish in a garden pond fed by treated rainwater?
Yes — Sanitify is non-toxic to fish and aquatic life at recommended doses. Safe for garden ponds and directly in ornamental fish ponds.
Can Sanitify treat a water butt or barrel?
Yes — use 2ml of Sanitify per 1,000L for garden water butts. Re-dose every 4–6 weeks. Sanitify prevents algae and biofilm from developing, keeping the outlet tap and filter screen clean.
Does Sanitify work in plastic water storage tanks?
Yes — plastic tanks are ideal for Sanitify treatment. No material compatibility concerns with HDPE, polypropylene, or fibreglass.
Where can I buy Sanitify for my home water system?
Sanitify Water Treatment Drops (100ml) treat up to 20,000L — ideal for most residential wells and rainwater tanks. Available in the online shop with EU-wide delivery.

Keep exploring

More in Water Treatment

The same probiotic principle, tailored to where it is used. Choose another setting to see how Sanitify works for you.

Agriculture Irrigation & crop water Aquaculture Fish & shrimp water Livestock Farms Cleaner drinking water Commercial Legionella & systems

Clean once. Stay protected for days.

Make the switch from sterilising to colonising — probiotic protection backed by a single trusted brand.

Shop the range Talk to us