Mega flo again.

[Dan Robinson]

When no flow is taken and the water is being heated then the pressure in the cylinder can rise above the inlet pressure due to expansion. But that slight increase disappears immediately any flow is taken.

The loading pump takes the accumulator up to 6 bar.

 

[Peter Willimas]

When a flow is taken from your cylinder the pressure at the outlet can only be lower than the pressure at the inlet.

When no flow is taken and the water is being heated then the pressure in the cylinder can rise above the inlet pressure due to expansion. But that slight increase disappears immediately any flow is taken.

Ok

 

[Peter Willimas]

The loading pump takes the accumulator up to 6 bar.

And i assume that this is then reduced to 3.0 on the 3rd floor by the 3bar PRV? - But a nice constant 3bar

 

[Madrab]

OP, I think at this point it may be advisable to get a plumber in that has experience with advanced hot and cold water systems to do a survey, perform a pipe sizing and design exercise to see what your current system is capable of, what may be achievable and go through all the options that may be available and applicable to your situation.

Only way to ensure you get what you need.

 

[Dan Robinson]

Yes - for as long as the charge remains in the accumulator.

 

[Peter Willimas]

Yes - for as long as the charge remains in the accumulator.

Then when its empty it reverts back to standard flow / pressure until it fills and recharges again?..

 

[Dan Robinson]

OP, I think at this point it may be advisable to get a plumber in that has experience with advanced hot and cold water systems to do a survey, perform a pipe sizing and design exercise to see what your current system is capable of, what may be achievable and go through all the options that may be available and applicable to your situation.

Only way to ensure you get what you need.

Indeed.

And as has been mentioned before - you should put limiters on the outlets where possible too - especially the kids showers... If they're ensuite. No point having everything luxurious.

 

[Dan Robinson]

Then when its empty it reverts back to standard flow / pressure until it fills and recharges again?..

Yes.....

See one we fitted a few years ago in St Albans. It was sized to do the family bath as single shower performance was fine.

 

[Dan Robinson]

In my vids, that 300 litre accumulator was holding about 170 litres of water.

 

[Dan Robinson]

BTW - I had to change the name to "Pressure Vessel" in the title because a certain other company that has some form of patent on the term accumulator were being arses and threatening legal action.

They will no longer be sold by us.

 

[Peter Willimas]

In my vids, that 300 litre accumulator was holding about 170 litres of water.

Its a shame you are not up north you can have my house and fit what you like!, just drive up ill make it worth your while!

 

[Dan Robinson]

Have a word with Brett Benson at Great Water and ask him if he can put you in touch with some one - he's involved with a few groups of plumbers from all over the country and is bound to know someone who can help.

Tell him I sent you (my real name is in my signature).

 

[Peter Willimas]

I have been speaking with Brett a lot! A hell of a lot and unfortunately there is nobody he has in the north, somebody is missing a trick with there kit up here.

I got to Brett though a company down south unvented something, thats not you guys is it?

 

[Dan Robinson]

Possibly, it's a small world.

 

[Peter Willimas]

Actually just found your website! Different company but both know Brett, it is as you say a small world