Water pressure problem

[tezza]

Hello everyone,

I’m wondering if anyone can help me. I’m currently working on a job and have 2 water pressure problems with the showers and bath taps.

I am working on the job, i.e. tiling and installation, and am a chippie by trade with some basic plumbing knowledge. The plumber that I am working with on the job does not seem motivated to solve this problem and I really want to get it sorted for the customer.

We have installed 2 showers in 2 separate upstairs bathrooms. They are both the same model: Hansgrohe Chroma Showerpiece (27159000/27169000) with a large rainshower head plus hand held standard shower head. They are currently supplied water by gravity feed from the tank in the roof. One of the showers is fed by a 22ml pipe from the tank in the roof space and then a 15ml pipe from the roof to the head of the shower in the studwork (about 1.3m distance). The other shower is supplied by a 22ml pipe from the tank all the way to the showerhead in the studwork. The water pressure to both showers is insufficient and I have been advised to install a pump to solve the problem.

I have had conflicting information on pump installation from plumbers who I have chatted to at the plumbing suppliers. I would like to know the best pump to use to increase the pressure and how to install it correctly and would really like a recommendation from someone who has experience with this situation.

We have also installed a free-standing bath with a separate standpipe in one of the bathrooms and the bath fill rate is very slow. The bath is being fed by 22ml pipe in the dormer roof space to the flexi hoses and the flexi hoses are about 1m in length up through the standpipe.

How can I increase the fill rate? The manufacturer recommended installing a pump as they didn’t have a standpipe with a larger diameter pipe.

Can anyone recommend a suitable pump and let me know how and where best to install it?

The customer doesn’t want to have one pressure pump to manage the pressure for the whole house or to install a pressure cylinder system due to the cost.

I’d be really grateful for any advice on the right pumps to use for the shower and bath problems.

Many thanks

Tezza

 

[Plumbstar Tom]

as you are filling the bath and want to increase this pressure you will need a whole house pump as shower pumps are not suitable for baths

You could look at highering the cold tank in the loft but this wont make the biggest of differences

From your description of the shower it sounds like a high pressure unit? Who Specified this?

I would advise a decent system pump, Salamander or Stuart Turner fitted as per the instructions with dedicated feeds

 

[turnpin]

contact stuart turner pump assist for advise on 0844 9800097regards turnpin

 

[Bernie2]

Hmm!

Yes, if you can't raise the storage tank to gain pressure you can get negative head pumps that you can put beside the tank out of the way, if space is a problem. As said Stuart Turner have been in the game for years but Salamander have built themselves a good reputation.
On the Salamander website there is loads of info.

 

[Spudhater]

If your going to pump them, increase the size of your CW storage to at least 50 Gallons then the feeds to the cylinder to 28mm (you should increase the size of your cylinder as well, which should have dedicated feeds)

 

[tezza]

Thank you for your advice sounds good i will take it frome there

Thanks i dont want to icrease the pressure to the bath just the flow rate
and the showers were supplied by the bath store i missed that one, any way can you get them in gravity fed?thanks