Best Time of Day/Night to Test

Scandela0629

Member
Sep 25, 2022
12
Manorville, NY
Pool Size
30000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 1400
Hello All,

I live in LI New York and have set my pool to run Mon thru Fri stating a 4 AM thru 4 PM (this is due to the enormous increase in cost from 4pm thru 8PM). On the weekends, it run from 6 AM thu 9 PM (no extra cost).

I have read your post about testing in early evening, but unless I run the pump again after 8 PM, that is not going to happen. So I have been testing in the morning at 8 AM (see more info below), before the Sun starts to bake my pool, and after my SWG has been running 4 hrs.

I have a waterfall, but it mostly runs it on weekends, unless pool is being used during the week, which is rare.

The pool water has been crystal clear, no algae.

My numbers from this morning are:

FC: 5.6
pH: 7.7
TA: 60
CYA: 50 (still a bit low, and working on getting to the 70 TFP recommends).
CH: 50
Salt level is usually: 3200 PPM
SWG is running at 40%

I have NOT purchased the recommended test kit, yet - these numbers have been from the WaterGuru S2 that I recently purchased. My pool has been maintained my pool guy, and again, I have never had any issues - water has always been crystal clear, but I "feel" that he is using old pool math instead of TFP numbers. I am NOT at the Manorville house during the week, which is why I purchased the Waterguru to monitor it remotely.

So, I would apricate your thoughts on the testing time, and adjusting if needed. Is 8 AM good? Earlier? Or should I run the pump after 8 PM for an hour, and test then?
 
Welcome to TFP.

It really does not matter what time of day you test your pool water.

TFP numbers have not changed so I don't understand about what "old pool math" is.

 
Hi Allen,

Thank you for your input, greatly apricated. By "old pool math", I meant that my pool guy doesn't keep the CYA/FC at the levels that TSP recommends.
 
If your numbers are accurate they don’t look off from recommended ranges,
 
Allen,

I purchased a test kit, and plan on comparing the numbers from the test kit to the numbers from the Waterguru to get an idea of how accurate it's test are.

Thank you again for your input, apricated from a newbee!

-Sal
 
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