Faulty float valve, or faulty immersion stat?

[kevin plumber]

Just inspected a hot water cylinder with a combined water tank, on inspection i found the water tank to have the float valve (part 1 type) submerged in water. The water is coming out of the overflow and i'm drawn to either of the two conclusions:

1. Ball valve is faulty and needs replacing.
2. Thermostat is bust and causing expanding water to pump over, hence the extra water in the tank being sent out of the overflow.

A second opinion would be good, cheers.

 

[Howsie]

With Tamz on this.

Water expands by 4% when heated. 1600% when it turns to steam.

 

[Danv44444]

Fit a new Ball valve and ball, and fit a new stat. It would cost you no more than £20 and it will be sorted no problem.

 

[mountainman]

Fit a new Ball valve and ball, and fit a new stat. It would cost you no more than £20 and it will be sorted no problem.

That will solve the problem for sure but will provide no diagnosis of the true cause.

 

[Danv44444]

For the sake of probably less than £20 why mess about with it?

 

[tamz]

There is no need to mess about with anything. It needs a washer, fixed it 5 minutes, minimum charge to the customer.

 

[Dannypipe]

Agreed, why start changing a perfectly good stat?

 

[mountainman]

For the sake of probably less than £20 why mess about with it?

Quality of service and acquisition of knowledge I'd say.
Anyone can guess wildly, a professional either knows what to do or will make an educated guess!

 

[tamz]

And how to change a washer is first week in the job stuff. It doesn't come much easier than that one.

 

[mountainman]

And how to change a washer is first week in the job stuff. It doesn't come much easier than that one.

Why change a washer if the float is full of water and no longer floating?

 

[Dannypipe]

I told him to check the float on page 1.

Its now page 3 and as Tamz says, this is basic stuff.

Check the float, check the valve, and check the stat with an electrical meter.

Change the faulty part. The name of the original poster implies he's a plumber. So this should be childs play.

 

[tamz]

Why change a washer if the float is full of water and no longer floating?

Nobody said the float was full of water, just that it is under the water. This is 1st year apprentice stuff. Anyone who can't properly diagnose this in 2 seconds is in the wrong job.

 

[mountainman]

Couldn't agree more mate.
If an allegedly experienced plumber is still asking stupid questions after a load of sensible answers have been provided it doesn't bode well for the future of the trade IMO.

 

[tamz]

I do actually worry about how things will be 20 years down the line. Of course there will still be some good tradesmen /women but the majority will be useless. I have really seen standards and skill levels drop dramatically in the past 10 or so years and it gets worse year after year.
I'd better keep my tools with me when i land in a nursing home........if i can still remember what to do with them by then :lol:

 

[Danv44444]

It wasnt i wild guess it could have been a problem with the stat or the ballvalve. For the sake of a ball valve and a stat and being 100% sure its fixed and safe whats the problem with changing both? I was just trying to help the guy? is that not what this forum is about?

 

[mountainman]

It wasnt i wild guess it could have been a problem with the stat or the ballvalve. For the sake of a ball valve and a stat and being 100% sure its fixed and safe whats the problem with changing both? I was just trying to help the guy? is that not what this forum is about?

No way could it have been the 'stat without really obvious indications.
Yes, this forum does it's best to help but when the best advice is offered perhaps it should be accepted and not argued with.
If the information provided is not acceptable then the poster is at liberty to go elsewhere for free advice.