No hot water pressure

Hi:
One of the tubs in my house has no hot water pressure. The cold side is fine but turn on the hot, and it comes out VERY weak. Any ideas before I take everything apart? The other faucets work fine, just this one bathtub is a problem and its just the hot side.
Thanks
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SEPrince1 wrote:

More information please.
Is this a one handle faucet? Is there a shower attached? What is the make and age? How long has this been a problem? Anything happen to the plumbing of the house at the same time this problem started?
--
Joseph E. Meehan

26 + 6 = 1 It's Irish Math
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Remove the tub valve and flush it, if it is a old house pipes may be clogged, as JM said not enough info
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Hi:
Double sided fauct. Its a Grohe brand (I think?) There is no shower attachment. I bought this house about 8 months ago and its been a probelm since day one. I would guess the fauct is about 4 or 5 years old. Nice fauct, it looks really well built. I guess my first thought will be to clean it out as suggested.
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Yea, that is what I would suggest. You eliminated the issues I was trying to rule in or out.
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Joseph E. Meehan

26 + 6 = 1 It's Irish Math
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SEPrince1 wrote:

Shut off the water at the hot water heater (better yet, the whole house)and pull the hot water stem. Look for a chunk of debris like rust etc. Might be able to break it up with a tool and blast it out (carefully)by turning the hot water back on for a second with the stem removed. (close the shower doors or curtain or be prepared for a mess!) good luck. I've done this to remove junk picked up when replacing pipes.
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You can "backflush" the hot water pipe if you can't solve this problem by removing the valve (like with single handle for hot and cold valves).
1. Cap bath tub water oulet. 2. Turn off hot water at water heater and turn off hot water heater breaker or gas. 3. Connect garden hose to hot water heater "out" pipe (portion going into wall). 4. Turn on cold and hot water valves at bathtub. Water will flow from the cold back out the hot pipe and into the garden hose along with the stuff which was clogging the pipe. 5. Turn off cold/hot water on bath tub, remove cap. 6. Remove hose from hot water heater out pipe. 7. Connect hose to water heater drain. 8. Drain water heater to remove any other debis inside of it. 9. Close drain, reconnect out pipe to water heater. 10. Turn on hot water at water heater, turn on a hot water valve somewhere until all air is gone from hot water tank. 11. Turn hot water heater breaker/gas back on.
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