Shower Problem

Could it be the new hose? Check its i.d. is not narrower than the old one. The narrow ones are no good for low-pressure systems.

Nearly: it's from the top of the water in the tank, not the bottom.

It could be the new shower head has smaller nozzles than the old one.

Somebody else told me this today, I cannot compare as the old hose has gone to the tip. If the new hose is a smaller diameter wouldn't that increase the pressure similar to putting your thumb over the end of a garden hose, or am I talking tosh?

Cheers

John

I don't think so. AIUI, the narrower dia hose will reduce the pressure & volume at the spray-head, whereas the "thumb on hose" determines how you use the pressure / volume already delivered at the hose outlet.

Disconnect the feeds to the mixer valve, remove and clean the filter and flush out the feed pipes before you put it back together.

The new shower is not meant to be run under mains pressure or anything silly like that?

Adam

Water through any pipe will have a finite pressure if it is restricted at the outlet end. Imagine a hose pipe.

Increase the diam. of the pipe and the pressure will stay the same, assuming that the open end stays the same also, but the flow rate will diminish through the larger diam pipe. This assumes that the source can maintain the pressure across all flow rates. (Head of water)

Putting your finger over the end of the hose restricts the flow rate and causes a jet of water to form. This jet will never get near to the level of head of water, no matter what you do with pipe sizes.

Back to the original question...

If the shower head has more holes, or has larger holes, then the diam of the pipe has been increased, hence the lower flow rate and the feeling that the shower is not as good as before. This is what I suspect the problem is.

HTH

Dave

The actual shower valve has not been replaced, I am talking about a new hose and sprayhead. What I am going to do is 'borrow' a neighbours original head and hose and see what happens then.

Thanks for all the replies guys.

Cheers

John

Shower heads are sold with a recommend as to the source of supply,i.e. electric,pumped or gravity,look on the packaging to see what yours will work with

I had a similar problem. Quite by chance I noticed the new hose and head had a no-return valve insert that was reducing the flow by around 1/3rd I prised it out and chucked it away. Presumeably this is to meet some regulation about backflow if showerhead is left in bath water.