Question: I have just installed a new power shower and showerhead complete with new HW tank and Warix valve. Pump and shower are both by Newteam - Easiboost and Tapmate Galaxy-T Thermostatic Mixer respectively. The pump is a twin impeller unit.
The cold water tank is in the attic above the HW cylinder with about 1.0m head (top of water to top of shower) and both tanks are of about 115litres capacity each. I have been working on this system for about 3 months now every other weekend (working away) and still no regular hot water flow out of the shower. The pump is at the base of the HWC and the shower approx 1.5m away.
The pump was until today protected by gate valves. The HW one was replaced today by a straight compression coupler to eliminate the possibility of air being drawn into the pipework. ALL pipework is new being 22mm and 15mm copper as required - 22mm feeds to the HWC and 15mm feeds to the pump from the CWT and HWC.
The problem is that air is getting into the hotwater side of the pump - not between the HW and the pump as the flexible pipework is rock hard being full of water but between the pump and the shower head the flexible pipe is soft and flabby. Cold water side is no problem both inlet and outlet flexible pipes are full of water.
If the union is loosened behind the shower mixer on the hotwater side water dribbles out with air mixed in and then the pump kicks in and a nice hot shower ensues. Switch it off and leave it half an hour and no hot water again and have to bleed the system AGAIN! Something that might be worthy of note - if the pump is run long enough it suddenly starts to screech with a \\\'kerplop\\\' and the hot water starts up.
Are we talking of a faulty reed switch here causing the air lock? Or is air getting into the system elsewhere or what? Management is not at all happy having laid out a fair amount of money for a new suite and shower plus tiling and lighting and I\\\'m going grey as this has got me beat at the moment. The gate valve can go back on as I think I can say it\\\'s not that!
The only thing that I could not do as per manufacturers instructions was to install the 15mm CW feed to the pump from the CWT 60mm below the 22mm CW feed to the HWC as the HWT feed was already at the bottom of the CWT
- in any case as far as I can see its the head that matters not whether the 15mm CW pump feed is lower than the 22mm CW HWT feed.
Any ideas chums? Management is threatening electric. I do NOT want to install an electric shower - we had one before - not enough flow for my liking.
The cold water tank is in the attic above the HW cylinder with about 1.0m head (top of water to top of shower) and both tanks are of about 115litres capacity each. I have been working on this system for about 3 months now every other weekend (working away) and still no regular hot water flow out of the shower. The pump is at the base of the HWC and the shower approx 1.5m away.
The pump was until today protected by gate valves. The HW one was replaced today by a straight compression coupler to eliminate the possibility of air being drawn into the pipework. ALL pipework is new being 22mm and 15mm copper as required - 22mm feeds to the HWC and 15mm feeds to the pump from the CWT and HWC.
The problem is that air is getting into the hotwater side of the pump - not between the HW and the pump as the flexible pipework is rock hard being full of water but between the pump and the shower head the flexible pipe is soft and flabby. Cold water side is no problem both inlet and outlet flexible pipes are full of water.
If the union is loosened behind the shower mixer on the hotwater side water dribbles out with air mixed in and then the pump kicks in and a nice hot shower ensues. Switch it off and leave it half an hour and no hot water again and have to bleed the system AGAIN! Something that might be worthy of note - if the pump is run long enough it suddenly starts to screech with a \\\'kerplop\\\' and the hot water starts up.
Are we talking of a faulty reed switch here causing the air lock? Or is air getting into the system elsewhere or what? Management is not at all happy having laid out a fair amount of money for a new suite and shower plus tiling and lighting and I\\\'m going grey as this has got me beat at the moment. The gate valve can go back on as I think I can say it\\\'s not that!
The only thing that I could not do as per manufacturers instructions was to install the 15mm CW feed to the pump from the CWT 60mm below the 22mm CW feed to the HWC as the HWT feed was already at the bottom of the CWT
- in any case as far as I can see its the head that matters not whether the 15mm CW pump feed is lower than the 22mm CW HWT feed.
Any ideas chums? Management is threatening electric. I do NOT want to install an electric shower - we had one before - not enough flow for my liking.