The problem in Preston West, VIC
Preston West households notice drain smells most in winter, when closed windows keep odours indoors. The build-up itself is organic — hair, soap scum, grease — and since Melbourne's soft water adds little mineral scale, clearing that organic layer is the whole job.
The DRAINZAP approach
DRAINZAP clears the organic layer with advanced clean chemistry (peracetic acid generated in-situ) that foams through pipework — the effervescent foam expands to fill the pipe, breaking down hair, slime and grease on contact, then rinses away. It works within the hour (leave overnight for heavy build-up), without caustic soda or sulfuric acid, and it's gentler on plumbing than caustic products. Science-led. Powered by nature.

DRAINZAP — Unblocks & deodorises drains
Clears drains. Prevents blockages. Powered by nature’s science.
$34.95 incl. GST
Shop DRAINZAPFree shipping on orders over $99 to Preston West — dispatched from Auburn, NSW.
Real results
About DRAINZAP
DRAINZAP clears slow or smelly drains with a powerful, innovative formula that dissolves hair, soap scum, and grime within the hour — or leave it overnight for the best result on heavy build-up — without burning pipes, and gentler on your plumbing and the environment than caustic products. No caustic chemicals. No harsh odours. Just a deep, natural clean that keeps water flowing freely and odours away.
How to clear a blocked shower or sink drain
Pour a dose into the drain, add warm water and let the effervescent foam expand through the pipework — dissolving hair, soap scum and organic build-up within the hour (leave overnight for heavy build-up). Use monthly to keep drains flowing and odour-free.
Septic-safe drain cleaner — no caustic chemicals
DRAINZAP clears the same organic blockages caustic products target — without the hazard. Safe for pipes, plumbing, fittings and septic systems.
Why We Made This
Instructions
Ingredients
DRAINZAP FAQs
Will it clear a fully blocked drain?
For most organic blockages (hair, grease, soap scum, food waste) — yes. For solid foreign objects (a toy, a cotton bud stuck sideways) — no, nothing liquid will. For a drain that's been slowly building up and finally stopped: give DRAINZAP one hour, leave overnight if possible for maximum effect. Save the plumber callout.
Is it safe for my pipes?
Yes. DRAINZAP is a clean chemical formulation, not caustic. When activated with water it generates thick foam, coating pipework internals and dissolves greasy residues, hair, organic waste and destabilises biofilms. It won't corrode PVC, copper, brass, or stainless steel. Unlike chemical drain openers, you can use it as often as you need without damaging seals or pipe walls.
Is it septic safe?
Yes — fully septic safe. It clears the same organic blockages caustic products target — without the hazard, or the damage to fittings and plumbing. Most chemical drain openers kill the bacteria that make your septic system work. DRAINZAP does not.
How often should I use it?
For maintenance (preventing blockages or bad odours): once a month. For a slow drain: one dose and repeat when the problem arises again. For a bad blockage: one dose, leave overnight.
Will it get rid of the smell?
Yes. Drain smells are primarily caused by organic buildup (fats, oils, grease, hair, food particles) and "biofilm" — a slimy layer of bacteria that grows on the pipe walls, which emits gases as it breaks down waste. DRAINZAP digests that buildup, so the smell doesn't come back the next day like it does with bleach.
Preston West questions, answered
Why do drains in Preston West smell worse in winter?
The build-up is there year-round — hair, soap and grease coating the pipe — but sealed-up winter homes keep the odour indoors instead of letting it disperse. Clearing the organic layer removes the source rather than masking the symptom.
Is limescale part of the drain problem in Preston West?
Rarely — Melbourne's soft supply means mineral scale contributes little here. Local drain trouble is organic: hair, soap scum and cooking grease. That's exactly the build-up DRAINZAP's foaming action breaks down.
How often should Preston West households treat their drains?
A monthly preventative dose keeps build-up from re-establishing. For a drain that's already slow or smelly, start with a full treatment — it works within the hour, or leave it overnight for heavy build-up — then move to maintenance dosing.
Works well with
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