How to remove the corroded valve seat housing in my tub faucet
Grrr.plumbing ... I am the by default female ''fixit'' around here and this is my plumbing stumbling block .I have 30 year old American Standard (not!) 3 handle tub faucets (shower diverter handle in the middle )I am adept at replacing valve seats and stem/washers assemblies, but my cold water valve seat housing itself has corroded through, so the faucet continues to drip around the valve seat.How do I get that piece out ? It is threaded, as is the stem housing (with a hex lock lug to hold the valve stem in place) Is there a specific tool to remove that?
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Re: How to remove the corroded valve seat housing in my...
Some seats ae rremovable and some or not Some take a hex(allen) wrench and some take a square (seat removal tool) Most of us use a seat grinder. (another tool to dress up the seat (Remove material) past the seat damage. You will find any of these tools at any hardware store that sells plumbing parts. If the seats have a square or hex hole remove and replace rather that grind(dress)the seat. All right hand threads meaning turn counter clock wise to remove. Take old seat to the American Standard plmbing supply outlet and then will match it up. Good fix-in to ya.
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When you turn off faucets other than your tub or shower you will note that the water stops fairly abruptly. Not so with a shower head or tub spout. Some water always dribbles out even after you have turned it off. This small amount of water then evaporates leaving behind the iron that was dissolved in your water. This also happens if any faucet has a slow drip. There are products that will easily remove the rust stains. CLR, Iron Out, or Iron Ike are all good products that will remove the stain. Available at hardware stores, plumbing supply houses, and, ugh, Home Depot or Lowes. Please support your local business owners by purchasing there.
If a faucet is leaking the necessary repair will be either: 1. For a ceramic or washerless faucet, replace the cartridge. 2. For a typical old fashioned faucet, open the faucet, replace the washer (and packing if it has any) and verify that the faucet seat has not eroded. The newer washerless faucets cannot be repaired except by replacing the cartridge. Cartridges for most common faucets are available at most home improvement stores or plumbing supply houses. It sounds a lot more difficult than it really is, just shut off the water (usually a shut off valve under the sink). After the water is off, remove the handle and any chrome protective covering. Depending on the faucet type, it may be a little difficult to remove the cartridge since they are often covered with mineral build-up or corroded into place. Once you remove the old cartridge the new one usually goes into place easily. NOTE!!! For single handle faucets, make sure you put it in the right way, some of them will put the hot to the wrong side if you put them together backward.
Your fixture body may be corroded beyond repair. Since you've replaced all the rebuildable parts, I'd suggest you get a plumber to check it but expect that you'll need to replace the faucet. Get a modern "cartridge" (Delta, Moen or Kohler) fixture that can be easily repaired indefinitely.
I can think of a few possibilities. 1) Something is blocking the hot water in to the mixing valve. Fixing this would probably mean cutting out the valve (then redoing the water lines with a new valve (possible option)).
2) The hot water line is losing too much heat going to this second faucet. (If the two tubs are on different floors this is more common. Many places are plumbed with one line with Ts to all fixtures.) Insulating the water lines might help; alternatively an point of use water heater would help.
3) The hot water and the cold water in are reversed. (Test by leaving the water on full cold and full hot for a few minutes each.) If you get full hot when it should be cold, valves with a cartridge are easy to fix. Open the valve assembly, remove the cartridge and reinsert it after turning it around (side closest to you when you removed it goes in first). Otherwise, the incoming plumbing needs to be redone at the point where the cold and hot lines come into the shower.
Stems are threaded into the valve housing. If this is a sink faucet, the keeper nut can be accessed for tightening and loosening beneath the handle with a pairof channel locks or a crescent wrench. If this is a tub, the keeper nut is usually in the wall abit and must be loosened with a tool called tub sstem wrenches available at a home store or plumbing supply house. A socket set may work in a pinch.
You need to replace the valve stem. Turn off house water, locate and loosen handle set screw, remove cylindrical cover, and remove retaining nut to access stem. Take e stem with you to a home store or plumbing supply house for accurate relacement.
sometimes check the faucet screws they come loose or if they are old you might want to replace the whole diverter, take them to lowes or home depot and have them guys in the plumbing department hook you up. trust me you are opening a can of worms with rubber valve seats just get new ones. Make sure before pulling you cut off water supply to them.
If you don't really want to tear into the finished tile, you could repair this units most likely. You will have to shut off the water in the house. Remove all handles. Loosen large nut assembly and unscrew the valve stem. If you remove the valve stems you can purchase the complete assembly at a full service plumbing supply co. If the seats are not removeable, a reseating tool is inexpensive. Replacement knobs are available if they are unsightly. The replacement will require removing tile, drywall, cutting or de-soldering piping. Purchase a new valve and follow directions to install. Home depot sell Price Pfister faucets.
I'm assuming that you have a three handle faucet. You need to remove the diverter from the faucet body and while your at it remove the hot and cold stems from the valve body (the parts are inexpensive). Remove the seats inside of the valve body towards the back, replace with new ones. If stems are in good shape, just the washers and seats need to be replaces. If the brass on the diverter or on the hot or cold stems is pitted or marred, then replace the whole thing. The parts should be readily available at most plumbing supply places.