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I live in a 9 year old house. It has a secondary water heater in the attic servicing 2 bathrooms (3 sinks, 2 toilets, 1 shower, 1 tub). When the shower is turned on first thing in the morning and one of the two toilets is flushed, when the toilet completes its fillup (shuts off), the pipes in the wall rattle until a sink or the shower water is cycled (on/off). I have taken out the shower faucet cartridge assembly (single handle delta unit) and it rattles when shaken. The toilets have replacement works in the tank (not the older hissing shutoff valves). Any idea what might be causing this or what to look for?
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Strainsa,
I think your problem is a pipe hammer that sets up a vibration that continues. You will need to install a water hammer arrester. You can buy one of these or make one yourself by adding a short piece of capped upturned pipe (looks like a cactus arm)to the cold water supply near to the fixtures in question. These privide an air pocket that will obsorb the hammer effect of the water shutting off suddenly.
The picture on the left is an arrester that you need to solder into the current plumbing which probably means cutting a wall open. The picture on the right is a unit that replaces the shutoff valve behind you toilet and is probably easier and cheaper to install.
Good luck,
Jim
'Just a handyman trying to help''Just a handyman trying to help'
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