For at least 4000 doubles now, the mains water pressure of my house has been at a steady 4 bar at idle, registered on the gauge of my Futurmat. I have not fitted a pressure limiting valve because of this constant.
Several days ago the pressure started to register a fair bit higher. Currently it is 5 bar but yesterday it went as high as 6 bar and maintained this reading for much of the day. It hasnt gone back to its "usual" 4 bar. I bought a 350 kPa pressure limiting valve from Bunnings yesterday and tomorrow will get some fittings to allow it to be plumbed-into the 1/4" water line.
I would like to know two things:-
1) What could cause this to occur after several years of lower readings? I am assuming that the gauge is (and has been) working correctly in all this and that there is indeed water of a higher pressure now being supplied to my house.
2) Where in the water line is the optimum location to fit the 350 kPa pressure limiting valve?
I have a twin undercounter water filter system which feeds filtered water to a commercial ion-exchange softener unit. The instructions on the limiting valve suggest to fit a strainer in the system before the valve. My thoughts are that the filters would do this if the valve was fitted between the filters and the softener but then the filters (which should and ***do have a form of limiting valve fitted before the water gets to them...to protect the system from too much pressure)....perhaps would not be protected from water of too high a pressure.
Reason tells me that if a limiting valve is placed in the system towards the end of the system that it would limit the pressure THROUGHOUT the system....but I am not certain of this. Can anyone with knowledge of this sort of physics clear this up for me?
***It could be that the current valve that is fitted as part of the twin water filter system has been keeping the pressure to the machine at 4 bar and is now ailing....am I grasping at straws??
Thanks,
Paolo
Several days ago the pressure started to register a fair bit higher. Currently it is 5 bar but yesterday it went as high as 6 bar and maintained this reading for much of the day. It hasnt gone back to its "usual" 4 bar. I bought a 350 kPa pressure limiting valve from Bunnings yesterday and tomorrow will get some fittings to allow it to be plumbed-into the 1/4" water line.
I would like to know two things:-
1) What could cause this to occur after several years of lower readings? I am assuming that the gauge is (and has been) working correctly in all this and that there is indeed water of a higher pressure now being supplied to my house.
2) Where in the water line is the optimum location to fit the 350 kPa pressure limiting valve?
I have a twin undercounter water filter system which feeds filtered water to a commercial ion-exchange softener unit. The instructions on the limiting valve suggest to fit a strainer in the system before the valve. My thoughts are that the filters would do this if the valve was fitted between the filters and the softener but then the filters (which should and ***do have a form of limiting valve fitted before the water gets to them...to protect the system from too much pressure)....perhaps would not be protected from water of too high a pressure.
Reason tells me that if a limiting valve is placed in the system towards the end of the system that it would limit the pressure THROUGHOUT the system....but I am not certain of this. Can anyone with knowledge of this sort of physics clear this up for me?
***It could be that the current valve that is fitted as part of the twin water filter system has been keeping the pressure to the machine at 4 bar and is now ailing....am I grasping at straws??
Thanks,
Paolo

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