It's probably obvious on the listing (but I can't see it). Could you please let me know what size hole I'd need to cut in the tank to fit this?
The inlet tail thread is 1/2" BSP which has a diameter of 0.825" or 20.9mm therefore 22mm or 22.5mm should clear the tail.
Thanks for contating the Technical Help line.
Date published: 2016-08-20
is this suitable for cen htg header tank (mains pressure)
not mentioned in the spec
Yes this product is suitable for that application.
Sorry for the delay in answering your question and thanks for contacting the Tech Help line.
Date published: 2016-12-04
I have not long had a power shower fitted, & have just found out that the header tank can't keep up if two people have a shower one after the after. I've noticed the float valve in the header tank pretty much looks like one you would get in a toilet & fills up at the same sort of rate too. So my question is this, does this valve have a faster flow rate & fill up my header tank quicker? Many thanks
These valves have been around for many years in much the same format, so I suspect it is very similar to the one you already have fitted. The reason they are fairly slow is that you really don't want too much of a flow going in to the tank or it deprives the rest of the house.
There are two possibilities I would look in to. Firstly, fit a 3/4" or 22mm float valve. This may seem silly when its fed with a 15mm pipe, but really it will increase the flow. Secondly, you could fit a pump in the house to increase the cold water pressure. Increasing the pressure will increase the flow to all areas of the house, so will not result in you depriving the rest of the house.
Date published: 2016-01-17