options to stop valve

[dazw83]

hi, what options do i have to stop water flowing? i am trying to remove a shower, and this is the feed to it, the stop valve on the bottom pipe wont turn so need to know what I can do here please

 

[JohnD]

The two slots that look like screw heads

Are in fact the ends on spindles on ball valves.

When the slots are in line with the pipes

It means "open"

Give each of them a quarter turn in either direction

So the slot lies across the pipe

Which means "closed"

Have you got a large screwdriver that is a perfect fit?

If necessary you can turn off the stopcock to then entire house, and drain the cold-water tank if there is one

And fit new valves

 

[JohnD]

The valves you have got look like the 80p type, which are not very good. They are liable to leak. The plastic insert may split.

The 15mm Pegler are ten times the price, and 20 times as good.

They also permit better flow.

https://www.screwfix.com/c/heating-plumbing/ball-valves/cat3830014?brand=pegler&sort_by=price

 

[CountryFan]

If it's a mains pressure fed, turn main stopcock off and replace the 22mm isolation valve whilst you're at it.

 

[JohnD]

Oh, 22mm, my mistake.

I had the idea they were 15mm