Hello All,
I am after some advice.
2 years ago i did a bathroom overhaul replacing all the appliances and replacing the old electric shower for a thermostatic shower with a shower pump fitted at the base of the hotwater tank (then a conventional system). I had to run the pipes from the shower pump (hot and cold) up into the attic along and back down the wall cavity to the thermostatic shower. All worked perfectly for a year and a half. I then had the combi system (worcester bosch) fitted into the airing cupboard in the place of the hotwater tank and the plumber piped up the shower as necessary.
Since having the combi, I have noticed that the bathroom taps and shower are alot loader and clunky on operation (due to the high water pressure in our area) and especially now considering the water pressure for hotwater is now from the main via the combi.
I have toyed with ideas of lowing the water pressure but when testing with manual throttling valves i have noticed, as expect, that when you throttle one appliance to work correctly once another appliance has a demand the water flow in the first appliance is not suitable.
Anyhow,
Last night I had a fitting blow off the hot water feed to the thermostatic shower pipe in the attic and p*** water out down the wall cavity, luckily i was in and managed to turn off the supply quickly with hopefully not too much water damage, fingers crossed. The wife said she had operated the basin tap and on closing it she heard a loud pop followed by the gush of water.
My question is this:
Could the problem have arose due to the fact that the shower piping runs up from the boiler into the attic before coming back down to the thermostatic shower, i.e. could i have had an air lock in the pipe that caused the fitting to blow off once the pressure had suddenly built back up once the that tap was closed?
I have no check valves in the system, not sure if i should of had?
Also the fitting connection was made using a brass elbow fitting on plastic pipe as opposed to push fit which i am going to fit tonight (John Guest).
Any opinions welcome.
I am after some advice.
2 years ago i did a bathroom overhaul replacing all the appliances and replacing the old electric shower for a thermostatic shower with a shower pump fitted at the base of the hotwater tank (then a conventional system). I had to run the pipes from the shower pump (hot and cold) up into the attic along and back down the wall cavity to the thermostatic shower. All worked perfectly for a year and a half. I then had the combi system (worcester bosch) fitted into the airing cupboard in the place of the hotwater tank and the plumber piped up the shower as necessary.
Since having the combi, I have noticed that the bathroom taps and shower are alot loader and clunky on operation (due to the high water pressure in our area) and especially now considering the water pressure for hotwater is now from the main via the combi.
I have toyed with ideas of lowing the water pressure but when testing with manual throttling valves i have noticed, as expect, that when you throttle one appliance to work correctly once another appliance has a demand the water flow in the first appliance is not suitable.
Anyhow,
Last night I had a fitting blow off the hot water feed to the thermostatic shower pipe in the attic and p*** water out down the wall cavity, luckily i was in and managed to turn off the supply quickly with hopefully not too much water damage, fingers crossed. The wife said she had operated the basin tap and on closing it she heard a loud pop followed by the gush of water.
My question is this:
Could the problem have arose due to the fact that the shower piping runs up from the boiler into the attic before coming back down to the thermostatic shower, i.e. could i have had an air lock in the pipe that caused the fitting to blow off once the pressure had suddenly built back up once the that tap was closed?
I have no check valves in the system, not sure if i should of had?
Also the fitting connection was made using a brass elbow fitting on plastic pipe as opposed to push fit which i am going to fit tonight (John Guest).
Any opinions welcome.
