tomcoleman

i was also concerned about weight as mega flow is next to vessel in the end it was on a load bearing wall and joist are new and thick, builder said it was ok so did it, been fine ever since.

ive been emailing the manufacture for weeks on how to set the pressure via the pump. Theres no controls and says its "pre set" act factory i presume if i took the cover off there would be some type of USB connector but would need the software to adjust. Out the box its set to come on and charge at 4.0bar and switch off at 6.0bar thus storing 6bar of pressurized water in the vessel. The pressure drops rapidly from the vessel, for example on a full charged (charged to 6bar) if i have a shower for around 5-8mins it will drop below 4 bar then pump will turn on and try to start charging the vessel again if im showing in the window when the timer plug for the pump is on.

shower performance has gone up by around 30% my PRV is set to 3.5Bar the mains comes in from the street via a MDPE pipe which then goes into 28mm copper which then feeds directly to the accumulator pump. The pump then pressurizes the black storage tank (as seen in photo) upto 6bar. The pump is on a timer and set to come on 3 times a day (as its noisy even with damper matts and sound proofing) It has made a difference as i said around 30% but its not worth the £3000 it cost. The pressure of the storage vessel drops very quickly im trying to speak to the manufacture to see if it can be set to go upto 7-8bar so i have more pressure for longer. On the top floor shower i renewed the pipe work from 15mm to 22mm this made no difference as the thermostatic mixer i guess still reduces everything to 15mm. Dont get me wrong the shower "feels" stronger i just wish it lasted longer, in the rest of the house no real major difference on taps etc

ok boost a main all installed. Mains in which is MDPE goes into 22mm copper with a check-valve, this then goes into 22mm>28mm into the inlet of the pump. From the pump i have a 28mm > 28mm connection to the accumulator tank. The outlet of the pump is then 28mm out reduced to 22mm which connects onto existing 22mm PRV which then goes off to feed megaflow and balanced cold. Pressure on PRV gauge used to be 2-2.5bar and now reads 3.5bar (this is what i set it to)

from my understanding the shower will be fed from the accumlator and when that depletes it goes back to mains. As the accumlator is pushing out to the megaflow at (whatever bar is set ) and when empty its flow & pressure is no more so mains takes over. Mind you i have gone for a 300L version so should hold more then enough water for showers.... I'll let you know how i get on. I dont know what pressure drop i get all i know is mains in is 2bar and showers arent dribbling they just arent lovley.

I had a guy come over from boost-a-main to have a look, wasn't a sales guy more technical and talked me through some options, i also discussed some other products on the market. My internal plumbing is mainly John-Guest 15mm, i have a flow device which showed my taps pushing around 8lp/m which is rubbish and a inbound street static pressure of 2bar. Im going to fit the kit myself im a DIY'er and its not that hard, couple of connectors etc. The pump will then pressurize the unit and i can adjust the output to the unvented megaflow which should be an opertional bar of 3bar but i'll do 3.5 to account for 0.5 loss of transport. I should have this kit in april so can always report how i got on. on 15mm pipe the max flow rate is 18l/min so more then enough,.

sorry mate - not enough coffe inside me !! HAHA im going for accumlator + pump to increase pressure. i did increase the pipe from the road already to MDPE but made no difference.

The pump charges the accumulator though up to 6 bar....?

i also put in MDPE pipe in replacing the mains into the house direct into the water supply off the road, made no differnce. mains into house is 2bar.

placed my ordered todo for a Provess 440H and a Boost-A-Main MSP10 pump will let you know how it goes. Over £3k of kit ! ?

just an update - everything is working perfectly and all 7 ports are balanced perfectly!! done the job, leave them on for like 60-90mins come back and volla! sorted!

ok it might be fixed!! i read somewhere to leave it on for 60mins "calibrating" and not the 20mins the manual says. So far this seems to have worked and the valves are now open and everything is balanced at 2l/m

everything working as it should. just valves close and stay closed. clips are 10cm as per manual - not sure they have a way around to go ?

sorry forgot to post the sequence of what happens.

yes 240v into the control box, LED's green, Voltage going to the actuators, which move (open/close) and RED LED's lit.