K2639 to control the water level in a swimming pool

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1

I am assembling the kit to control the water level in a swimming pool.
Two questions :
1°)the water in the pool is salted at 4%. Do I have to use stainless steel wire for S1 and S2? If yes ,what diameter wire is recommended.
2°) For obvious security reasons I want to use an electrovane to admit additionnal water in the pool that is NC ( normally closed). But the K2639 switches the relay “off” when the water level is LOW , and I needl the contrary.
Thanks for your answer

2

Best to use stainless steel.
Diameter not important.
Regarding the ‘inverted’ opertion, this is not selectable on this kit.
You might try this (untested) mod:
Remove R20. Replace T1 with BC557B

3

Thank you for your reply. I will try the proposed modification and keep you posted with the result.

Does Velleman have a kit for the water level control of a swimming pool ?

4

No such kit