Hi have just been given a Stuart Turner Monsoon 3.0 bar twin shower pump. My existing pump has 15mm inlet and outlet but the Monsoon pump has 22mm. Was told that I need to replace all the 15mm pipewwork to and from the pump with 22mm as there would not be enough flow to activate the pump. Is the correct ? or can i just fit speedfit adaptors to connect to the inlet and outlet of the new pump

Thanks

Not really much point putting a 3bar pump on 15mm.

Which model are you getting.

_________________
If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

donnas-dream-house-charity-t52110.html

not sure of model on pump it reads
w input 850 A 3.7
duty head 29 metres @ 9 l/min
duty head 1 metres @67 l/min
head max 34 metres
maximum working pressure 6.0 bar
part code 14.50.46078

Feed ins need to be 22mm, I would change both in and out.

Is it a negative or positive head pump

_________________
If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

donnas-dream-house-charity-t52110.html

That's a nice pump. As Scruff says it needs to be plumbed in properly or it will die quite quickly.

22mm supplies to each side, cold direct off the cistern and hot best supplied via a cylinder flange. And make sure the stored water isnt over 55 degrees C

_________________
As always help on here is free, however if you think you have saved a decent sum of money why not click the link to find out about the charity we're currently supporting? A couple of quid makes a real difference.

donnas-dream-house-charity-t52110.html

And you'll probably need 80-100 gallons of stored water depending on the recovery rate.

_________________
If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

donnas-dream-house-charity-t52110.html

i presume its a positive head as the cold feed comes direct from the tank in the loft is that what you mean ?

No they manufacture two types of pump, one works with pressure drop and the other with flow.

_________________
If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

donnas-dream-house-charity-t52110.html

just put part number into stuart turner website and it says its a Monsoon 3 bar twin 230/1/50 can u tell from that wether its positive or negative head ?