Shower Pump Screaming

[pete&jo]

I have a twin impeller pump fitted in the airing cupboard which has started to play up. The water varies hot & cold, there is a screaming noise and the pressure drops. This isn't when another tap is turned on. A Surrey Flange was suggested and this was fitted but the problem continued. A new pump has been fitted as it was thought the bearings had gone on the old one. However, the problem continues! I have turned down the flow regulator to low as it was suggested that the water demand was too high but his hasn't helped.

It has been suggested that the cold water tank should be raised next.

We have a NewTeam Duraspeed pump and a nominal 40gal tank (reality 25gal) size cold watertank. The pump is next to the hot water cylinder and around 6ft below the cold water tank. The pump pushes the water up into the loft across around 6feet and then down to the shower cubicle.

Any advice appreciated as this problem has been going on for months.

 

[Nige F]

You`ve used up the 25 gals. faster than the main can replenish Look in roof at tank while shower runs

 

[bab]

Sorry to say but those pumps are crap. Better with a Stuart Turner 1.8 bar showermate at least . also bad idea to run up to attic & back down . Also what temps the hot water. I wont fit a pump that cheap so i dont now what the minimum requirements on instalation but most insist on 55 0c max hot inlet temp.dedicated supply & lowlevel self venting pipework.