what ever lights your candle m8
kevplumb said:what ever lights your candle m8
It stands to reason that more cannot be put in than taken out, the return will only return what the pump takes out in the first place, in this case the top is the least line of resistance, and the consequenses is it will suck not blow
I've done a check with a magnet as someone suggested and found that the magnet sticks
Finally the only way water can exit the vent is through a boiler overheat, or a circuit between the vent and cold feed or the vent and system
croydoncorgi said:Finally the only way water can exit the vent is through a boiler overheat, or a circuit between the vent and cold feed or the vent and system
Absolutely not true!
In situations where the open vent and cold feed are connected SEPARATELY into the primary flow just above the pump (thousands of typical 'inverted H cylinder cupboard' setups), the blockage often occurs between the two. Then pump pressure forces water UP the open vent into the F&E, from where it runs back DOWN the cold feed into the primary flow a couple of inches further on. As a result, the loft gets full of warm fog rising from the F&E and condensation all over the roof timbers.
I've personally repiped at least 3 of these in the last 6 months! (with 100 percent success)
The vent and cold feed are always connected on the suction side of the pump in a fully pump installation never above on the delivery side, and in which case I would expect it to blow over the vent, if the cold feed is blocked how does the water return to the primary flow a few inches further on.
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local