Hi,
I am looking for some advice on which type of pump I should fit to improve the flow to the showers in my house. I am in the position where I am planning to completely refit both bathrooms over the rest of this year so all options are on the table as I don't need to worry about using existing pipe work into rooms.
I currently have a gravity fed vented system. 50 gallon cold water tank in attic and a 450 x 900 hot water cylinder (so estimating 110-120ltr). The cold water tank in attic is only 15cm off the attic floor. Both the main bathroom and en suite are on the floor below meaning a drop of only 50cm to the shower head. The result is pretty poor water flow to both showers.
To complicate matters there is no room in the airing cupboard to site a pump at the base of the cylinder. So I will have to stick it in the attic. I am guessing this means a negative head pump? Or is it still positive as the end outlets will still have a positive head?
Another option I was looking at was to fit 2 x Aqualisa Digital showers with built in pump as I’m refitting bathrooms anyway. However, I understand I need to fit dedicated supplies to whichever type of pump I fit. I am assuming both digital showers would need there own supply. I don't like the idea of fitting Essex flanges so had planned to fit a Surrey flange to cylinder but that would only give me only 1 take off. I am assuming I can't T off to supply another pump or the pumps could be sucking against each other?
I think therefore my best option is probably one negative head pump in attic to supply both showers. Recommendation everywhere seems to be Stuart Turner. So I am thinking of going for the Universal TechFlo Qt 2.3bar as ideally want as quiet as possible.
I guess I'm just looking for someone to confirm my thinking is correct as the negative head pumps aren't cheap. Cheers in advance for any advice.
Luke
I am looking for some advice on which type of pump I should fit to improve the flow to the showers in my house. I am in the position where I am planning to completely refit both bathrooms over the rest of this year so all options are on the table as I don't need to worry about using existing pipe work into rooms.
I currently have a gravity fed vented system. 50 gallon cold water tank in attic and a 450 x 900 hot water cylinder (so estimating 110-120ltr). The cold water tank in attic is only 15cm off the attic floor. Both the main bathroom and en suite are on the floor below meaning a drop of only 50cm to the shower head. The result is pretty poor water flow to both showers.
To complicate matters there is no room in the airing cupboard to site a pump at the base of the cylinder. So I will have to stick it in the attic. I am guessing this means a negative head pump? Or is it still positive as the end outlets will still have a positive head?
Another option I was looking at was to fit 2 x Aqualisa Digital showers with built in pump as I’m refitting bathrooms anyway. However, I understand I need to fit dedicated supplies to whichever type of pump I fit. I am assuming both digital showers would need there own supply. I don't like the idea of fitting Essex flanges so had planned to fit a Surrey flange to cylinder but that would only give me only 1 take off. I am assuming I can't T off to supply another pump or the pumps could be sucking against each other?
I think therefore my best option is probably one negative head pump in attic to supply both showers. Recommendation everywhere seems to be Stuart Turner. So I am thinking of going for the Universal TechFlo Qt 2.3bar as ideally want as quiet as possible.
I guess I'm just looking for someone to confirm my thinking is correct as the negative head pumps aren't cheap. Cheers in advance for any advice.
Luke