Plumbing Experts - Help ... !!

Some long time back, I bought a whirlpool bath from Bathstore. I bought the same water inlet and taps that they had fitted in the showroom. I have just reached the point where I am ready to fit it all, and am having some difficulty finding the fittings that I need. The filler unit is a largish chrome fitting on the bath face, with the water connection points on the half of it fitted behind the bath face. The actual connection points are plastic male thread which reads about .8 inch - which seems to be just about exactly 20mm - across the threads, on my vernier. So what size is this, and what actually fits it ?

The taps are actually ceramic cartridge valves, with inlet at the bottom, and outlet at the side. Both of these ports are brass male thread, and read a tad over 1 inch across the threads. So again, what size actually is this, and what fits them ?

My incoming water is 22mm both hot and cold, currently with service valves fitted, no stubs or anything in the tops of these at the moment. So, I need to get from a 22mm service valve to the inlet port on the valve (tap) at 1" (?) and then from the outlet port of the valve, again 1" (?) to the bath filler inlet connector at 20mm.

I had been hoping to use flexis - possibly standard sized tap connectors to push fit, or push fit to push fit onto tap connectors with pipe stubs etc, for both sections of each (hot and cold) feed, but looking on, for instance, B&Q's website, I can't see any combinations of connectors or flexis that seem to match these sizes. Help please .... d:-\ }

Arfa

Reply to
Arfa Daily
Loading thread data ...

Sounds like they expect a standard 1/2" BSP tap connector. Say something like:

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for this application plastic pipe and speedfit may be a better choice, or flexi connectors).

3/4" BSP I would guess.

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take of the body of the compression fitting on the flexi and and the remaining nut will screw straight onto your existing service valve.

Why are you looking on B&Q's web site and hoping to find anything useful? ;-)

Reply to
John Rumm

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> (although for this application plastic pipe and speedfit may be a better

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> Just take of the body of the compression fitting on the flexi and and the

Thanks for that John. So, 1/2" and 3/4". Where on earth is that measured to equate to the sizes I measured at the threads ? The logic and history of plumbing fitting sizes are beyond me ... :-)

Arfa

Reply to
Arfa Daily

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> (although for this application plastic pipe and speedfit may be a

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> Just take of the body of the compression fitting on the flexi and and

Indeed. A fruitless exercise. Back pocket & sock etc.

Reply to
The Medway Handyman

BSP thread sizes relate to the internal diameter of some notional steel pipe they were designed for. Beyond that I'd have to google. With all these new building regs:- FENSA, Part P etc. You would have thought that HMG would have standardised (with a "z" if its a British Standard!!!) plumbing fittings. I'm in the middle of a major house replumbing exercise and I've just had a look at some of the spanner sizes I've been using (or thought might fit) Whitworth 1 1/4,1,...5/8, AF 2",1 3/8, 1 1/8, metric

30,28,24,22,19,18. (and end up using one of the 4 sizes of Bahco adjustables or one of 2 sizes of slip joint pliers I have). I found no evidence of consistency on the size of a 15mm compression nut across manufacturers. I can't understand how plumbers manage - or is it only in DIY where there's sure to be a joint that requires a spanner and an adjustables' jaws are too wide to fit into the gap or they are too thick and foul another part of the fitting?

Whilst I'm in grumpy old man mode I've been told that English Nature / Natural England have just produced a glossy brochure with picture of farmer on his ATV and 2 slight problems have been identified with this picture. Firstly no crash helmet being worn and secondly he has a passenger - a child. You just can't beat "joined up government"

PeterK

Reply to
PeterK

The 1/2" is the inside diameter of the an iron barrel pipe. When you thread the outside you end up with something just over 0.8" because of the thick pipe wall.

Reply to
John Rumm

Ah-Ha ! Thanks John and others. I am now a little more enlightened. Since the original post, I have bitten the bullet, and drilled the bloody great holes in the bath's top edge, to take the taps. Scary stuff ... !

Arfa

Reply to
Arfa Daily

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