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Sorry for the essay
I hold BPEC unvented card, just seeking more experienced engineers advice
job Back ground:
customer bought house and inherited poor flow rate to (210litre) unvented megaflo in loft. Location of internal stopcock is in middle of house in downstairs toilet.
Mains is 20mm black plastic, reduces to 15mm copper at internal stopcock which then runs through wall, under concrete kitchen floor, feeds outside tap and filtered drinking tap and then passes through water softener feeds kitchen tap and back under kitchen concrete floor to boxing in downstairs toilet all in 15mm copper. It then runs up into the loft increasing to 22mm in boxing somewhere, Where it feeds unvented cylinder and hot and cold feeds to rest of property.
Static pressure - 3.5 bar
working pressure - 2.5bar
flow rate at outside tap 14 LPM
property height 8m
All other outlets flow rate is 8LPM
Baths 1
basin 3
sinks 2
showers with standard heads (15lpm) 2
toilets 3
appliances 3
occupants = 2
showers habits: both shower in morning before work and evening before bed shower durations 10-15mins each
Now I have been in contact with TWS regarding their accumulators and have been recommended MainsBoost MB240 + add on but the cost of this is coming to £2000 just for the units.
I am just wondering if anyone knows of any other companies that do accumulators or if anyone has any other suggestions to overcome poor flow rate for this system?
I was thinking of installing breaker tanks and using negative head pump to supply feed to PRV where I would take balance feeds to house, but would resistance of PRV affect working of pump? Has anyone done it like this in the past?
As as you can tell this is the first time I have had overcome a situation like this and appreciate all the advice you more experienced engineers can offer.
thanks
I hold BPEC unvented card, just seeking more experienced engineers advice
job Back ground:
customer bought house and inherited poor flow rate to (210litre) unvented megaflo in loft. Location of internal stopcock is in middle of house in downstairs toilet.
Mains is 20mm black plastic, reduces to 15mm copper at internal stopcock which then runs through wall, under concrete kitchen floor, feeds outside tap and filtered drinking tap and then passes through water softener feeds kitchen tap and back under kitchen concrete floor to boxing in downstairs toilet all in 15mm copper. It then runs up into the loft increasing to 22mm in boxing somewhere, Where it feeds unvented cylinder and hot and cold feeds to rest of property.
Static pressure - 3.5 bar
working pressure - 2.5bar
flow rate at outside tap 14 LPM
property height 8m
All other outlets flow rate is 8LPM
Baths 1
basin 3
sinks 2
showers with standard heads (15lpm) 2
toilets 3
appliances 3
occupants = 2
showers habits: both shower in morning before work and evening before bed shower durations 10-15mins each
Now I have been in contact with TWS regarding their accumulators and have been recommended MainsBoost MB240 + add on but the cost of this is coming to £2000 just for the units.
I am just wondering if anyone knows of any other companies that do accumulators or if anyone has any other suggestions to overcome poor flow rate for this system?
I was thinking of installing breaker tanks and using negative head pump to supply feed to PRV where I would take balance feeds to house, but would resistance of PRV affect working of pump? Has anyone done it like this in the past?
As as you can tell this is the first time I have had overcome a situation like this and appreciate all the advice you more experienced engineers can offer.
thanks