Hi,Something is definitely not right with that unit if the lid is popping off at only about 20-30 psi. Even on their website HERE they show a pressure gauge that goes up to 50 psi. You would never want it that high on purpose, but it should be able to retain the pressures you noted. There must be a restriction either in the filter or beyond. Something assembled wrong in the filter, or a closed/defective valves after the filter.
On a side note, @JamesW do you have experience with this make/model filter?
Yes, you're right. Waiting delivery of the air purge in the next day, I checked again and the pipe is there, seems to be screwed in the bottom, even if the top of the pipe isn't not there.
A lack of an air relief valve won't make the pressure any higher.
Yes, I've the same day you ask me to do. The main office seems to be in spain. But phone they look nice but not very interested in the case, seem to be on holiday. Only way to contact them by email, which I did. Waiting for reply.Have you contacted the manufacturer about this?
I tried to be exhaustive. Please find attached some pictures of the whole systems and specifics areas. Water comes from the pool by 3 ways (vacuum, main drain and tank - means buffer tank for infinity pool) on the left hand side, goes to pump, check valve, MPV, filter and on the right hand side goes through the electrolyser before returning to the pool.Can you show more pictures of everything
Before, you said that the equipment was 7 meters below the pool.I understand that 7 meters from the pool to the filter is going to create an extra 10 psi
yes those 2 gray valves are always in that position. Not exactly partially closed because in that position it means, 70% of the water flow goes through the SWG and 30% without. No water is stopped.Stefany, maybe a silly question but ....... those two gray valves that are used before and after the salt generator, are they always on that position? I know the red handles everywhere are currently closed because your filter is broke, but those grey valves are partially closed as well. That would increase your filter pressure.
Sorry this was a mistake. The equipment is 7 meters below the pool and not "from".Before, you said that the equipment was 7 meters below the pool.
Is the equipment at the same elevation as the pool or 7 meters below the pool?
Why do you need a 3 hp pump?
Is it a variable speed pump?
If yes, what speed do you run the pump?
What is the pool size?
The distance below the pool should add about 10 psi to the filter but it does not require a bigger pump because the pressure is exactly offset by the pressure pushing into the suction.7 meters above the ground floor where the equipment had been installed.
Yes I didn't see it before, but I think at the begining the maintenance team does something ther (maybe replace the o'ring), and now it looks damaged. Easy to buy the spare part, not to install (I checked before trying to tight them, but the nuts are almost impossible to reach from above. No matter how I would manage). I will order it on monday.It looks like the assembly is replaceable.
I would replace the part along with the other parts and lower the flow rate significantly.
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With all the information you give me, it seems obvious that I should have been more attentive to the technical characteristics of the equipment they offered me during construction. I've just learn a few days ago only that the pressure is offset by the pressure pushing into the suction line. So 4/5 years ago they could tell me anything.The distance below the pool should add about 10 psi to the filter but it does not require a bigger pump because the pressure is exactly offset by the pressure pushing into the suction.
I would downsize the impeller and diffuser to significantly decrease the flow and pressure.
I would go with a 53976-4008101 BX ( 0.75HP) CTX (1.0HP) Impeller or a 53976-4008102 BX ( 1.0HP) CTX (1.5HP) Impeller.
thanks so lotYes, that is correct.