Pumped shower needs hot tap run (Hot water Tank)

[Zelfer]

Morning.

I've moved to a new house where to get the shower running i have to turn the tap in the bathroom on enough for the pump to detect the drop in pressure and start up, then i can use the shower happily ( about 3 seconds)

Even the cold water doesn't run with much pressure until the pump is running.

It's not an electric shower.

Any ideas what i can do to stop needing this step?
I'm in a bungalow, and a pump and hotwater tank are new to me.

Thanks!

 

[picasso]

Can you post a picture of the pump ?

 

[Zelfer]

Can you post a picture of the pump ?

Yep, i'll get details of it this evening.

 

[Zelfer]

Can you post a picture of the pump ?

Its one of these.
Yes, its also got a small leak by all accounts!
View media item 77702

 

[picasso]

Its a single ended pump so not quite sure why it would be doing both the hot and cold, its probably lack of flow through the pump and as the pump looks like its on its last legs I would say fit a negative head pump, could you post how the pipes run to the pump.

 

[Zelfer]

Its a single ended pump so not quite sure why it would be doing both the hot and cold, its probably lack of flow through the pump and as the pump looks like its on its last legs I would say fit a negative head pump, could you post how the pipes run to the pump.

I've had a dig about and there is also a cold water tank in the attic, so guessing that the shower is driven from that, ( would also explain why the shower always seems quite hot), assuming that the hot water pressure is used to draw the cold through.

The "shower" pump is used to pump all water in the house as well, not just the shower - the hot water tank is in the bottom of the airing cupboard, and i'm in a bungalow.

Will go and get a picture.

I miss my simple combi boiler!