Plumbers in San Marcos, Texas

Three kinds of water, and what each may be used for

Once a property has more than one kind of water on it, being precise about the words stops being pedantry.

Potable water is what comes from the utility. Treated, tested and safe to drink, and it feeds every fixture people wash or cook with. Everything else on the property is measured against not being this.

Greywater is used water from low risk fixtures. Laundry, showers, baths and hand basins. It is not sewage, but it is not clean either: it carries soap, skin, lint and bacteria, and it goes off quickly once stored.

Blackwater is everything from toilets and kitchens. Kitchen sinks and dishwashers count as blackwater because of grease and food solids, which surprises people. It is not reusable on a domestic property.

Reclaimed water is municipal, treated and delivered separately. Where a development has it, it arrives in its own purple marked main for irrigation and similar uses. It is not a private system and it is not connected to your household plumbing at any point.

Rainwater is a fourth category and it is not greywater. Collected rain has never been used, so it is treated as its own supply with its own rules, and it can be taken further toward potable use than any reused water can. Properties that have both a cistern and a greywater line need three sets of pipework kept apart, not two.

Separation, marking and the rules that follow

Every serious reuse failure is the same failure: a connection that should not exist, made by somebody in a hurry.

No cross connection, at any time, for any reason. Not a shared manifold, not a valve that can be opened to supplement one system from the other, not a temporary hose while something is being fixed. There is no acceptable version of a temporary crossover.

Purple is not decoration. Reclaimed and reuse pipework is coloured and labelled so that the next person to dig, repair or extend it knows immediately what it is. If you install reuse pipe, mark it properly and tag the valves, including the ones inside.

Greywater goes below ground or under mulch. Domestic greywater irrigation is designed to discharge where people and pets are not in contact with it, not through spray heads. Sprinkling greywater across a lawn is the one approach that is both unpleasant and not permitted.

Do not store it. Greywater turns septic within about a day, which is why a laundry to landscape system distributes it rather than holding it. Tanks of standing greywater smell, and the smell is the least of it.

Know which rules apply to your setup. Small domestic greywater reuse and larger or indoor reuse are treated quite differently, and reclaimed water service comes with the utility's own conditions. Ask before you build, because retrofitting compliance is expensive.

Keep a drawing, not a memory. A sketch showing where the reuse lines run, where the diverter sits and which valves do what is worth more than any label once a system has been in the ground a few years. Properties change hands, landscapers change, and the person who built the system is rarely the person standing over it with a shovel.

How reuse plumbing actually fails

These systems are simple, so the failures are simple too, and mostly they are about solids and pressure.

Lint blocks laundry systems. A washing machine puts out a remarkable amount of fibre, and a laundry to landscape line without a filter or a surge tank blocks within months. The filter is the whole maintenance task, and it is a monthly one.

A diverter valve left in the wrong position. Any decent greywater setup has a valve to send water back to the sewer instead, for when the yard is saturated, when someone is unwell, or when a heavy disinfectant is being used. It gets left the wrong way and then the garden floods or the drain gets confused.

Soap choice decides plant survival. Detergents high in sodium and boron kill the plants you are watering. This is a plumbing consequence of a laundry aisle decision, and it is the most common reason a working system gets abandoned.

Reclaimed lines get mistaken for potable. On a property with both, an unmarked line is an accident waiting for a new owner, a landscaper or a plumber who assumes. Labelling is the cheap part of the whole system.

Pressure is not the same on both systems. Reclaimed and greywater lines often run at different pressures from the house supply, so fittings, emitters and any pump have to be matched to what is actually there rather than to habit.

Saturation is a design problem, not a weather problem. A greywater field sized for a two person household cannot absorb what four people produce, and the symptom is a permanently wet area rather than a blockage. If the yard never dries out, the answer is more distribution area or more time back on the sewer, not a bigger pump.

How a call plays out

The phone is answered around the clock. Tell us whether the problem is on the potable side, the reclaimed side or a greywater line, and if you do not know, say that too. If a diverter valve exists, say which way it is set.

San Marcos and the rest of Hays County are on our daily route. We keep the two systems apart, refuse to make a crossover however convenient it looks, label what we work on, and will tell you when a reuse plan needs a permit or a design before any pipe gets bought.