Booster mounting problem

[plasmanu]

Electricity and sealing are two different areas.
I already threw 2 submersible pumps. Because they were tripping. (Not that tight)
If the earth leakage breaker is in the cellar and you don't go down for a week. Hello the mouth of what's in the congelo. Colateral effect ...

[Forhorse]

What we call in electrical engineering "continuity of service" is also linked to the use of practices and standards that must be respected.

If you connect a potentially faulty device (a submerged pump, an external lighting circuit, computer equipment ...) on the same circuit as a critical device (freezer ...) you may well put your socket on the shelter and 1m from the pipes, that's not what will save the contents of your freezer.

[chatelot16]

the main problem is the position of the pump!

it must be in this normal position, not lying as we see in the photo

this kind of pump is very self-priming: just put a little water in it and it is able to draw air from a suction hose even long enough

when it is in its normal position, the water goes around in circles and it is the air which leaves by the pipe at the top

if it is mounted lying down as in the photo, the water comes out from the start and there is not enough left in it to be self-priming

then your filters on the suction further complicates the problem

I put in the suction only a fairly coarse sieve filter, just to stop what could damage the pump: the finer filters for the quality of the water or lime must be put at the outlet of the pump, to do not complicate its initiation

[lahonan]

To begin with, is the pump suitable for sucking in the water level. The pump is installed at a good height meter to which must be added the depth of the well and the pressure losses due to filters and lengths of pipes. Know that 7m in height is the theoretical maximum for sucking water, beyond there is cavitation in the pump body. In practice 6m is already a maximum.
The filters on the suction must only serve to protect the pump from objects blocking it. The strainer plays this role, a mesh filter can be an additional safety. If the filter is clogged, then the pressure drop increases and the pump cavitates. The difference in noise is very clear. The filter must be cleaned.
The water treatment filters (filtration coil, anti-scale, activated carbon) must be placed in the pump outlet, with a maintenance bypass. They work in overpressure.
For electrical installation, as FORHORSE writes, pay attention to continuity of service. If the 30mA differential of the outlet circuit trips (usually due to water spraying on the outlet), what will be the consequences for the other devices connected to this circuit. I would have added protection on the socket against splashing water, even 5l can attached to the wall and open below.
For the pump that does not suck, it must already be placed on the spot, manually filled with water and it must be primed.
Do a test by putting everything on the ground.

[chatelot16]

don't break your head with the details

this kind of pump sucks up to 8 meters deep mounted the right way ... mounted askew as in the photo it will not even suck in a bucket of water 1 meter below

[Alain G]

Obviously the installation is to be redone from the beginning, 2 hours of work max will make it compliant!

[fred_cbr]

Well if I expected all these answers ...
What I have retained and will do:
- Change the position of the booster and put it "flat".
- From this fact it will be on the ground therefore further from electricity.

If still NOk put the filters at the outlet.

In any case thank you for your remarks and reflections, I am making progress faster than alone

[fred_cbr]

And inverted the filters because it is true that the anti scale filter before c not top ...

[Forhorse]

this kind of pump is very self-priming: just put a little water in it and it is able to draw air from a suction hose even long enough

This self-priming is obtained by the presence of a venturi between suction and discharge inside the pump.
But suddenly this venturi leads a lot to the performance of the pump, both in terms of flow rate and outlet pressure.
On the one that I use for rainwater, I plugged this venturi with silicone sealant (originally mainly because this venturi was split) I noticed a marked improvement in the flow rate of the pump.
By cons no more self-priming! (not annoying for my application, the pump is lower than the tank)

[fred_cbr]

good it is done, it works properly now, I take the opportunity to add some valves.
Now I would like to add a lack of water security but the ones I find are plastic and I would like one made of brass or at least strong.
Anyone have a good address?