Water Systems & Plumbing Maintenance for a Florida Home

Water systems are the quiet half of home maintenance. Nothing here is dramatic, none of it takes long, and the failures they prevent are among the most expensive things that happen to a house.

Two facts shape all of it in Southwest Florida: the water is hard, which steadily deposits scale on everything that heats or carries it, and a plumbing failure in an empty house runs unattended. (General education only — not legal, tax, financial, or insurance advice.)

The shut-off valve nobody has tested

Start here, because it is the one that matters at 2am.

Find the main water shut-off. Turn it fully off, then back on. Do the same for the irrigation shut-off. Then make sure everyone in the household knows where it is — not just whoever usually handles this.

A valve that has not moved in ten years is a valve that will not move when water is coming through the ceiling. Exercising it annually keeps it free, and finding out it is seized on a calm Saturday is infinitely better than finding out during the emergency.

The water heater

Once a year, drain several gallons from the tank valve until the water runs clear. Check the temperature and pressure relief valve while you are there. On a tank unit, inspect the anode rod every few years — it is the sacrificial component that corrodes so the tank does not.

The reasoning is hard water. Southwest Florida water leaves scale and sediment on the bottom of the tank, and that layer insulates the burner or element from the water it is meant to be heating. The unit runs longer for the same result, and the tank fails earlier than it should have. A flushed heater lasts meaningfully longer than one that has never been touched.

Softener, RO and whole-home filters

Water softener. Keep the brine tank at least half full. When you check it, break up any salt bridge — a hard crust that spans the tank and leaves an empty space underneath while looking perfectly full from above. This is the failure mode worth knowing, because the softener quietly stops working while the tank looks fine, and the first sign is hard-water symptoms returning on fixtures and glassware.

Southwest Florida water is hard enough that an unsoftened home shows it on fixtures, glass and water-using appliances within months.

Reverse osmosis. Carbon and sediment filters roughly every six months; the RO membrane roughly every two years. Whole-home sediment filters on the same six-month cycle.

Past their service life, filters stop filtering and start hosting. Cheap on schedule, unpleasant late.

Finding a leak before it finds you

Once a year, run the meter test. Turn every fixture off — every tap, the ice maker, the irrigation — and watch the water meter for fifteen minutes. Any movement means a leak.

Then walk the house: under every sink, around every toilet base, at the water heater, looking for staining, damp, or the faint mineral crust that says water has been evaporating there for a while.

Toilets deserve their own check. Put a few drops of food coloring in the tank. If color appears in the bowl within fifteen minutes without flushing, the flapper is leaking. A running toilet is invisible, silent, and expensive — and it is very often the entire explanation for a water bill nobody can account for.

Washing machine hoses

Look for bulges, rust at the crimps, and dampness. Rubber hoses are commonly replaced around every five years; braided stainless is the upgrade.

This is a small item with an outsized worst case. A burst supply hose delivers water at full main pressure until someone shuts it off. In an occupied house that is a bad afternoon. In an empty one it is a renovation.

Drains, traps, and empty houses

In any home where fixtures go unused — a guest bath, or the whole house while it sits closed — run every sink, shower, tub and toilet for a minute or two to refill the traps. If the home will sit for months, add a splash of mineral oil on top of the water in each trap to slow evaporation.

A dry P-trap is an open pipe to the sewer. The smell is the first sign, it is unmistakable, and it takes days to clear once it starts. In a closed-up home it is the single most common complaint owners have on return — and it is entirely preventable by putting “run the traps” on the home watch scope of work.

For the disposal: ice cubes and citrus peel, or a purpose-made cleaner, quarterly. Never put a hand in it.

The schedule

Task	How often	When	Who
Exercise the main water shut-off	Once a year	May	DIY
Flush the water heater	Once a year	Jan	DIY or pro
Replace RO and sediment filters	Twice a year	Jan, Jul	DIY
Run water in unused fixtures	Monthly	Every month	DIY or pro
Check toilets for silent running	Once a year	Sep	DIY
Check water softener salt	Monthly	Every month	DIY
Clean the garbage disposal	Quarterly	Feb, May, Aug, Nov	DIY
Inspect washing machine hoses	Once a year	May	DIY
Whole-home leak check	Once a year	May	DIY

Related reading

• The Florida Home Maintenance Calendar — the full year, every system
• Closing Up a Florida Home for the Season — water shut-off and trap protocol in detail
• Common Problems in Older Florida Homes — including supply and drain material by era
• 4-Point Inspections in Naples — plumbing is one of the four