Mainsboost for unvented system

[Riley]

Pressure will drop by nearly 0.6 of a bar going up that distance

 

[chris watkins]

Flow rate measured may have been limited by the supply hose on the kitchen tap, try to get a full flow 15mm mains reading.

 

[Stants]

Flow rate measured may have been limited by the supply hose on the kitchen tap, try to get a full flow 15mm mains reading.

Pressure will drop by nearly 0.6 of a bar going up that distance

Yeah was told on the earlier post 0.1 per metre

 

[Stants]

Flow rate measured may have been limited by the supply hose on the kitchen tap, try to get a full flow 15mm mains reading.

So are you saying it may be restricted because of the tap ? And I’d get a better flow if taken directly off the 15 mm pipe ?

 

[chris watkins]

Yeah was told on the earlier post 0.1 per metre

Yes.
So pressure will be OK, you just need to workout if you can live with the flow rate you have or you could investigate the other options.
If you have room I would go for accumulation tank.

 

[Stants]

Yes.
So pressure will be OK, you just need to workout if you can live with the flow rate you have or you could investigate the other options.
If you have room I would go for accumulation tank.

Thanks do you have any more info about an accumulation tank makes sizes etc

 

[chris watkins]

https://greatwater.co.uk/uploads/BAM_brochure.pdf

 

[Stants]

https://greatwater.co.uk/uploads/BAM_brochure.pdf

Cheers

 

[MOSSEP]

Ive fitted a mains boost system, worked well but took up a huge amount of space. From memory they provide as volume of water rated at half of its size, so a 300l mains boost will provide 150l of water. If you have the cash and the space then they are as viable option.

 

[SalamanderPumps]

The other possible solution would be to fit cold water storage cisterns, from there you could use a couple of decent single impeller negative head pumps to pump from the cold water tank. One pump could supply the cylinder and the other could supply all non-potable outlets, something like the Salamander RP80(or 120) SU's.

We also have an accumulator offering, called AccuBoost, but this won't be available until around September.

If you need any further advice, please feel free to give us a call on 01915162002

 

[moonlight]

You can fit a homeboost max 12 l/min

 

[chris watkins]

The other possible solution would be to fit cold water storage cisterns, from there you could use a couple of decent single impeller negative head pumps to pump from the cold water tank. One pump could supply the cylinder and the other could supply all non-potable outlets, something like the Salamander RP80(or 120) SU's.

We also have an accumulator offering, called AccuBoost, but this won't be available until around September.

If you need any further advice, please feel free to give us a call on 01915162002

View attachment 38623

Notifiable under the Water Regulations if you go this route.

 

[OffshoreGas]

If you fit for example a 300L accumulator and pump you could probably expect to get 200L out. How long it will boost and how long to refill will depend on your water supply.

Say you have 10L/m from mains and want to boost to 15L/m the tank could supply for 40 mins constantly (200L / 5L/m). The tank would then have the full mains (10L/m) recharging the system so should be replenished in 20mins.

In a more normal example a person having a 10min shower, the system will most likely have refilled by the time they’ve dried/dressed.