I need to fit a new Ball Valve to the Water Tank in my loft. I'm not an expert at DIY by any stretch of the imagination! ..Do I need to turn the Hot and Cold Water off? .....I'd be grateful for any help...Thanks!
2007-02-05 01:39:00 · 9 answers · asked by robspursfan 3 in Home & Garden ➔ Maintenance & Repairs
http://www.diyfixit.com/nflash/Plumbing/Ball/ball1.htm
Give this link a try
2007-02-05 01:42:03 · answer #1 · answered by richard_beckham2001 7 · 0⤊ 0⤋
By Turning Off The Cold Where it Enters Your House Will Take Care Of Both. Make Sure you open a Faucet Below Loft so water Will drain and you Know water Is off. Then Install New Valve If I knew what Kind of pipe you have i could give you directions.
2007-02-05 03:47:49 · answer #2 · answered by bob r 4 · 0⤊ 0⤋
You only have to turn off the cold water for the water tank. There may be astop tap near the tank to do this.To change the ball valve, First undo the nut on the end of the pipe, but as you do, make sure you do not lose the fibre washer on the end of this pipe. Next Undo the bigger Back nut. When this is taken off, you can remove the old ball valve.Fit the new one, and as you refit the back nut, hold the ball valve to stop it turning. Then re connect the water pipe ( with fibre washer) and tighten By hand, then another half turn with the spanner. Turn water back on, and check water level of ball valve, and adjust as needed.
2007-02-05 04:13:44 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Is this the inlet valve or the drain valve?
If its the drain valve you just shut off the inlet valve & drain the tank. You will have to use a hose to drain the water away safely.
If it is the inlet valve you will need to find the main shut off for that line. It may be at the meter.
Is the line copper, with all of the joints soldered? If so this isn't some thing to do if you have never done it.
But there are connections that are quite simple to use in this case. Look close at the piping & see what you need to disconnect. Measure what you will need to replace what you will cut out. It may help to draw a little diagram to take with you to the hardware store to see if they have something that is simple for you to fix it with.
You can use a compression fitting on the copper pipe.
If it is in galvanized pipe with a union you shouldn't have much of a problem.
2007-02-05 02:15:23 · answer #4 · answered by Floyd B 5 · 0⤊ 0⤋
You need to turn off the cold supply. Ther is usually a tap just above the floor under the kitchen sink. Otherwise it is the stopcock outside. The ball valve comes as a complete assembly, so it will be easy to tell which fastener you need to undo to remove the old one. Be careful not to strain things around the valves when undoing the old one or tightening the new one. There is usually a place on the valve body for a second spanner etc to counter the force being applied to the fastener. Otherwise you may damage the supply pipe or tank body.
2007-02-05 01:53:02 · answer #5 · answered by fred35 6 · 0⤊ 0⤋
Shut the main stopcock to the house, the hot & cold are fed by the tank....they dont feed the tank, Test your isolation before going for it by depressing the valve ball, nothing should come out( maybe just as the pressure is released, no more.) Get new valve, you may need new tap connecter washer...little fibre one.... homebase have. look at tap connectors, small fibre washer is included... but they sell then separatly. You may need PTFE tape, if the joint is compression fit...bind the olive (like a cheapskate wedding ring)
2007-02-05 02:57:41 · answer #6 · answered by johncob 5 · 0⤊ 0⤋
well i use alot of pumps at work and if u have high water pressure where u live then the valve may close to fast if u have high pressure and the valve closes fast the water will slam to a halt and shake the pipes.... same effect when i use pumps at work if the pump is running and i close the ball valve fast the pipes get a quick jerk and make a bang sound and shake for a second or two if i close it slow i just hear the water slowing till its closed and no bang so most likely situation is ur valve is closing to fast and stopping the water to fast and making the pipes shake creating the bang u hear
2016-05-24 17:55:34 · answer #7 · answered by Heather 4 · 0⤊ 0⤋
Both. You'll need to shut off the cold water supply because that is what feed the hot water heater, and is the line you'll be working on. You should also shut off your hot water heater, and you may want to let it cool some before you work on it just to avoid any backflow of hot water that could burn you.
As an alternate, you could turn off the hot water heater, run some hot water out of the faucet, allowing cold water to fill into the hot water heater and cool it before you cut off the cold water. You can also use the hot water heater's drain to drain off some of the level in you heater to avoid any backflow.
Don't forget you'll need to drain the cold water line some too, so have a bucket or rags for the water that comes out when you disconnect it.
2007-02-05 03:09:17 · answer #8 · answered by Jeffrey S 6 · 0⤊ 0⤋
Better off turning it off just to be safe!
They are easy to fit so you shouldn't have any probs really!
Unscrew and replace! Just becareful if they are the plastic ones though - don't over tighten!
2007-02-05 01:43:19 · answer #9 · answered by jamand 7 · 0⤊ 0⤋