unvented system inlet pipe

[blake floyds]

I have booked to go on unvented training day

but I have been asked to price putting in a unvented tank

the work will not be done till I have done the training but so I can price the job right can any one tell me if the inlet pipe on a 300L mega flow can be in 15 mm I can not seam to find any info on it

my standing press is 4.8 bar
and the flow rate is 14 letters a min

is this ok
only running a bigger pipe from the mains is very very hard and the stop cock is 15 mm

thanks

 

[andytheplumber]

If you are a qualified plumber you should have covered this any way

 

[sooey]

14 ltrs a min is useless for a megaflow anyway, are you sure you're measuring it right?

 

[JPC]

sooey....i agree....measure again.

not normal (in leicester anyway) to get such high pressure and low flow)

 

[blake floyds]

i used a flow cup that I got of e bay and had no paper work

Where do you take the reading from
I took it that where the water comes out the side that s your flow

 

[blake floyds]

I used the kitchen tap mat be it was blocked

 

[LUNAT]

HI

15mm for 300l tank no good .minimum 22mm inlet pipe required.common sense.

 

[blake floyds]

ok with that pressure do you think it will bee ok