Rosie on the House: Why and when to do a plumbing Inspection

Dec 18, 2023

A water heater inspection checks every connection, the tank's exterior and all the valves that shut off water to the tank.

Q uestion: I have been in my home for 16 years and it's never had a plumbing inspection. I am not aware of any problems. Should I schedule one anyway?

Answer: Most homeowners schedule a plumbing inspection when they sell their home, buy a new one or have a problem. There is no reason to wait for any of those situations. It's good practice to schedule one before there is a problem.

Plumbing inspections and maintenance go hand in hand. Inspecting plumbing systems determines if and what maintenance might be needed. A comprehensive review of this vital system in our homes can prevent a disaster from occurring when we least want it (like on Christmas Eve when you have guests).

The timing of your inspection is important. The inspection can be conducted at any time of the year, though it is highly recommended to schedule or perform it before the monsoons. The reason is simple; humidity. If you have used a swamp cooler, you know how the humidity introduced into the home can cause wood doors and windows to swell, making them a bit harder to open or close. It is the same with plumbing. The expansion and contraction, as well as the moisturizing of otherwise dry connections, can cause problems.

Leaks and blockages are the most common repairs in a home's plumbing system. Be mindful of even the tiniest points of corrosion, rust, calcification and scale build-up. You may not be able to see the leak yet, but these four signs are characteristics of a leak beginning to manifest itself.

The objective of inspections is, of course, to prevent a disaster by being proactive. The result of a professional inspection is to obtain a comprehensive report that details areas of concern and provides a solution for you to consider.

Q: What is involved in a plumbing inspection?

A: A plumbing inspection performed by a professional company licensed by the Arizona Registrar of Contractors should include the following:

Water quality — Testing your water for hardness, softness and chlorine content is completed. Knowing the extent to which your water may have high or low pH or chemical content will help guide the inspector or yourself to look for specific reactions with piping, valves and fixtures.

Water pressure — High water pressure can put undue stress on the plumbing pipes and fixtures. High water pressure in your home is comparable to having high blood pressure in your body. The ideal water pressure is 50 to 55 pounds of pressure per square inch (psi).

Water heater — This appliance can cost thousands of dollars if not maintained. An inspection checks every connection, the tank's exterior and all the valves that shut off water to the tank. Plumbers are looking for signs of corrosion, including rust, calcification and scale build-up. What begins as a pinpoint leak with some scale around that point can evolve into an expensive repair. All connection points of piping, venting, relief valves and drains are carefully inspected.

Valves — There are a lot of valves in a residential plumbing system, starting with the main system shut-off valve where your home is connected to your water provider. Every valve is examined and tested. Each sink has at least two valves; one for hot and another for cold (often called angle stops). The laundry valves, toilet valves and hose bibs are inspected for rust, corrosion, calcification and scale build-up. They are also tested for operational effectiveness by turning them off and running the faucets and toilets. If the valve is off and water comes out, replacement is needed.

Toilets — The toilet is tested for proper operation, including evaluating leaking from the tank into the toilet. A dye tablet is placed into the tank, and the water in the bowl is watched for dye trickling from the tank into the bowl. If there is, the flushing valves and seals in the tank are not working properly. Minute leaks can lead to a lot of water wasted over time. Another telltale sign is the sound of the toilet tank filling at random intervals.

Piping — The hot and cold water supply lines, where visible, are examined for leaks, large and small. The joints and connections are key places to look for signs of a leak or a pinpoint leak is brewing. The same scrutiny given to the supply lines must be given to the drain lines. Sink drains, especially the P-traps, are inspected for possible signs of a leak or damage. When storing items under the sinks, be careful taking them in and out, as you may jostle the drain line loose.

Check out some innovative and sometimes overlooked energy-saving strategies that can help you and your wallet survive Tucson's summer swelter.

An Arizona home building and remodeling industry expert for more than 40 years, Rosie Romero is the host of the syndicated Saturday morning Rosie on the House radio broadcast, heard locally from 10 to 11 a.m. on KNST-AM (790) in Tucson.

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