SIX7 PLUMBING
SIX7 Plumbing Greywater System Installation Colombo
A rare request with real engineering behind it: shower and laundry water redirected to garden and flushing — separated, filtered, pumped or gravity-fed, and never cross-connected to a potable line.
Demand here is low because awareness is low, so this is a sold-to service: we explain what the system takes off your meter (flushing and garden water, continuously), what it costs, and what maintenance it needs — then you decide. The engineering is separation: a dedicated grey line, filtration stage, storage, and pump or gravity distribution to approved uses only. Cross-connection to drinking lines is the one thing we will never do.
The 65,000 base reflects a full residential system — separation, filter, storage, pump, distribution — quoted per property after a survey, because every house routes grey water differently. Maintenance is a simple filter cleaning we teach you during commissioning, not a contract you're locked into.
60-Min ETA
We arrive fast. Most emergency calls are on-site within 60 minutes across Colombo and Western Province.
6-Month Shield
Every repair comes with a 6-month workmanship warranty. If our work fails, we come back at no cost.
Transparent Pricing
LKR 65,000 + 3,500/hr, quoted per property after survey, + visit LKR 2,500. Pay only after approval.
T&Cs apply — /pricing/ & /disclaimer/
Common Greywater System Installation Issues We Fix
Garden irrigation bill
High garden irrigation costs? Greywater can feed your garden instead of fresh water. We install compliant systems.
New eco build
Building a new eco-friendly home? We install greywater recycling with proper separation from potable lines.
Flush-water savings retrofit
Toilet flushing uses clean water unnecessarily. Greywater can feed flush lines with proper separation.
Laundry reuse
Washing machine water can be reused for gardens. We install the grey line separation and filtration.
How We Fix It
Diagnosis
We map fixtures, grey sources and irrigation runs, then size the system to what your household actually produces.
Quote
The quote covers the diverter, filter, storage and every fitting point - line by line, before ground is broken.
Repair
Grey lines are run colour-coded apart from potable, with the diverter and irrigation feeds set to spec.
Verify
We flush the lines, test the diverter positions and hand you the maintenance schedule for the filter.
"Greywater lines stay physically separate from potable water — different pipe, different colour code, no crossover, ever."
— SIX7 Plumbing, Mount Lavinia
Everything You Need To Know
Get answers to the most common questions about our Greywater System Installation service.
Yes when kept separate from potable lines — we never cross-connect, ever.
Full system: separation, filter, storage, pump, distribution — quoted per property after survey.
Simple filter cleaning; we show you how at commissioning.
Get A Quick Estimate
Tell us about your Greywater System Installation issue for a fast, no-obligation quote.
Extend the Life of Your System
Prevention
- •Greywater is only for gardens and flushing - never potable. Keep the separation strict.
- •Retrofit is possible in most houses. We confirm on inspection before you commit to anything.
When To Call Us
- •A greywater system can cut your water bill by 30%. That's not just good for the environment - it's good for your wallet.
- •A new build is the cheapest time to route greywater — the walls are still open, so every line is planned instead of retrofitted.