Help, Switching from liquid chlorine to SWG

[JamesR]

I never really thought about it overflowing unless I did it intentionally to push surface crud (pollen, dust…) over the spillway, into the pool and right to the nearby skimmer.
Here is a pic of it this evening. The pump is on. The water is just below the spillway but about 1/2” higher than the pool. You can see the white equalization tube in there as well.

 

[Darin]

always run the spa in overflow mode and you will have no issues.

 

[mknauss]

You can see the white equalization tube in there as well.

That is mixing the waters also. There is no need to be concerned that the spa will have high FC levels in normal operations.

 

[JamesR]

Thank you very much! I feel a lot better about it now.
I went outside just now and gave the spa a tad more water on the return side and a tad less on the drain. It is slightly overflowing the spillway now. Not sure why I never had it doing that in the first place. Just one of those; “I’ve always done it this way” sort of things.
Today I placed the order for the RJ-60+ SWCG unit.

 

[JamesR]

So the RJ60+ has been running for a couple days now. I also installed a VSP. I have the spa in a constant spillover now. The only time it doesn’t spillover is when the VSP is running at a speed below 1800 rpm. Anyway, you were correct. I sampled the spa water and the pool water just after the SWCG had completed one of its cycles. The spa was just 1 ppm higher than the pool. Within 30 minutes, they were equal again.
Now that I understand the cycle time of the generator, it makes sense. I’m at 25%. So it’s on for 45 minutes and off for 135 minutes. So as soon as it stops generating, it all mixes and evens out.
Thanks for the help.