Overflow in main water tank
- Thread starter MacMurphy
- Start date
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tooo late
When you've chamged the valve, did you change the float or reuse the old one?
I've done both at different times. Change the float and reused an old float.
At the moment I have a choice of 2 floats, but they both perform in the same way... they don't close off the valve completely.
you say you are fitting brass equilibreum valves? (they are very expensive). It is expensive to fit a new one, you should be able to re-washer them. Or send your old ones to me 
They need an extra-large float, I believe they recommend a 6-inch copper float.
If they start to leak after they have been in a while, I wonder if they are getting grit or scale in them?
An equilibrium valve does not need a pressure reducer, they cope with a vast range of pressures.
They need an extra-large float, I believe they recommend a 6-inch copper float.
If they start to leak after they have been in a while, I wonder if they are getting grit or scale in them?
An equilibrium valve does not need a pressure reducer, they cope with a vast range of pressures.
you say you are fitting brass equilibreum valves? (they are very expensive). It is expensive to fit a new one, you should be able to re-washer them. Or send your old ones to me
They need an extra-large float, I believe they recommend a 6-inch copper float.
If they start to leak after they have been in a while, I wonder if they are getting grit or scale in them?
An equilibrium valve does not need a pressure reducer, they cope with a vast range of pressures.
They've cost about 25 quid a time. (100 quid when the plumbers have fitted them.) I've thrown 5 away. Have got 3 left. I'll have to see if I can get some new washers for them. Thanks for the idea. Can't see any grid or dirt or degradation.
I'll try a 6 inch copper float.
Thanks to all!!!
I had a brass equilibreum valve once, very expensive, I particularly remember the makers said you had to use a 6-inch copper float. I presume it takes a lot of leverage to shut it off securely.
Don't know why, the more modern plastic equilibreums have a tiny float.
It might help to bend the arm so the float sits lower in the tank and would be fully submerged before it overflowed.
AFAIK they are not widely used, I seem to remember they were popular on farm livestock trough supplies where pressure can vary a lot.
Don't know why, the more modern plastic equilibreums have a tiny float.
It might help to bend the arm so the float sits lower in the tank and would be fully submerged before it overflowed.
AFAIK they are not widely used, I seem to remember they were popular on farm livestock trough supplies where pressure can vary a lot.
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