[Solved] I am looking for a quiet pressure booster pump - a replacement for Grudziądz

Hello,

I have a pressure booster pump Ska 4.02 installed in the house + 300l galvanized tank. The whole is mounted in the boiler room, but above it I have a kitchen and a bedroom behind the wall. Hydrofor generates very high noise, despite the installation of plastic and the installation of damping rubber. There is nothing to hide, the pump from Grudziądz is very loud. I am looking for a replacement, provided that it must be a self-priming pump, because at the very end of the well the check valve in the basket does not hold a water column, hence the valve is installed in front of the pump and in front of the tank. Access to damaged valve not possible. 5/4 '' pipe without cover at a depth of 22 meters. Access to this well is difficult because it is located in the gazebo.

I found several, self-priming pumps:
1. Grundfos JP-5 or JP-6.
2. Wilo Jet pump wj 202
3. OMNIGENA MH 2500 / 230V INOX pump


My question, if any of these pumps, after previous flooding will be able to suck water in my case? Let me remind you that ska 4.02 has no problem.

There is one more way out. I thought that in the boiler room, where the pump stands, dig a well and let it in, and then cover with a wool cover and ventilate outside the building. Only, will the vibration not transfer to the foundations? And will this silence do anything at all?

You won't find better than SK. If you care about soundproofing, encase it with e.g. OSB with glued mineral wool.

And what do you think to dig a well in the boiler room and put a pump there? It would be at a distance of about 40 cm from the foundations.

jalop wrote:

And what do you think to dig a well in the boiler room and put a pump there?

If the conditions allow it, you would definitely get some peace and quiet.

Throw this pump, let the submersible pump into the well, supply it with a pressure switch located on the hydrophore tank and I say that standing even at this tank you will hear only the sound of water and the silence will be complete above the ceiling.

wiesiekmisiek wrote:

Throw this pump, let the submersible pump into the well, supply it with a pressure switch located on the hydrophore tank and I say that standing even at this tank you will hear only the sound of water and the silence will be complete above the ceiling.

Only the pump that could fit into a 5/4 "pipe has not been invented yet

Reading the post I understood that the 5/4 inch pipe is on the supply of the hydrophore and not the diameter of the well.

wiesiekmisiek wrote:

Reading the post I understood that the 5/4 inch pipe is on the supply of the hydrophore and not the diameter of the well.

jalop wrote:

5/4 '' pipe without cover at a depth of 22 meters.

5/4 '' comes out of the ground and that's how the pump is powered. Hence, I have no way to put anything into this pipe, only what I can connect a self-priming pump. I don't even know if there was a check valve there originally - a well made in 1987, I have a bill somewhere for 16 thousand then.

Do you know any quiet pump that will meet my expectations?
As quiet, I mean one that works quieter than Grudziądz.

I solved the problem in the summer by installing a 2.5kW multi-stage, monoblock pump. It works great.