Shower pump plans...

[glennhalstead]

Hi folks,

I've been reading many of the posts here to gather advice about my own shower pump plans...

I'm planning to fit a shower pump to feed a single shower in my bathroom. I have poor water pressure in the wash basin and think I can use the pump to feed the wash basin too.

I recently fitted the wash basin and mixer tap and the hot water pressure went to almost zero. It wasn't great before but I guess the narrow pipes in the mixer tap have made it worse. Previously it had separate hot and cold taps taking 15mm pipes.

The HWS tank is on the first floor, same as the bathroom. The CWS tank was on the first floor above the HWS (circa 1970's wimpey council house). I have moved the CWS tank to the attic in an attempt to improve the basin hot water pressure which it did a little but not nearly as much as I'd hoped. Also I figured that moving the CWS to the attic would alleviate the need for a negative head pump for the shower. I have 22mm pipe from the CWS to the HWS.

My plan is to fit a pump in a space I have end of the bath and use that to feed the shower and the basin.

I've read quite a lot on here about folks having problems with hot water flow in the pumps and am thinking I should stick with a 1 or 1.5 bar pump however I have no real idea of the difference in shower pressure that a 1, 2 or 3 bar pump will provide.

What advice do you folks have about what I plan to do and what pump might be a good choice?

thanks

Glenn

 

[Morris40]

Go with Stuart Turner pumps, what you propose sounds ok, only thing i would change is put the pump in the cylinder cupboard not under the bath, a decent pump will be around £250-£300 you can buy cheaper but beware, I would go for a 2 - 3 bar pump as 1 bar would not be that powerful, If your cold tank is say 4 metres above your hot tank you'll have 0.4 bar pressure as 1 metre head equates to 0.1 bar, that may give you an idea as to what pressure is what

 

[glennhalstead]

Thanks for your Reply Morris. I do not have space in the cylinder cupboard, hence the plan to site it in the bedroom.

Glenn

 

[Morris40]

Oh well, it'll just mean a little more pipe work, no probs though

 

[husker199]

worth making sure your storage tanks and cylinder are big enough to cope with the demand.

 

[Morris40]

worth making sure your storage tanks and cylinder are big enough to cope with the demand.

Good point, you will go through your water supply a lot quicker with a pump connected,

 

[glennhalstead]

Thats why I was thinking of getting a lower pressure pump such as 1 or 1.5 bar... so it didn't use too much water.

I assume though that the amount of water used is based on how much I open the shower control and hence how much water I have flowing?

 

[bengasman]

Recently installed my first Grundfoss showerpump, looks the part, feels the part and runs like a dream.
Make sure that you always have more than the minimum required head, no matter what happens.

 

[glennhalstead]

Hi bengasman,

What, bar was your pump?

 

[bengasman]

I think it was a 3 bar.

 

[V1k]

Hi, just reading this post, does anyone have a diagram detailing the best place to put the pump and how to connect it up?

 

[Richard C]

Hi, just reading this post, does anyone have a diagram detailing the best place to put the pump and how to connect it up?

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