Balancing water with pool heater

Jun 7, 2014
36
Rochester,NY
Hello All!

Just installed a pool heater a couple of weeks ago. LOVE IT! Worth every penny! While everyone around me has closed up we were swimming at night a few days ago in September! (even the wife got in :kim:)

Anyhow a question.....

When adding chlorine or muriatic acid I add it in front of the return so no worries there, but when adding Borax or stabilizer I add it to the skimmer. I have not had a chance to install a bypass for the heater yet so I was wondering what your thoughts are on adding those in the skimmer, through the sand filter, then the heater and out to the pool. I understand that the sand filter will trap most of the borax and stabilizer and more or less delude it before releasing in to the heater and then back into the pool but I'm worried that the even the deluded amount may damage or corrode the heat exchanger.

Thoughts?

On a side note: The pool will probably only remain open for another two-three weeks before closing (however its suppose to be 85 sat and 87 sun here) so my other though was just to do it since I should only have to do it once before closing then next year I will hard plumb with a bypass for the heater and use that bypass anytime I have to shock or add these things to the pool.

Thanks Everyone!
 
We do not recommend adding any chemicals into the skimmer ... problem solved ;)
Check out: Pool School - Recommended Pool Chemicals

I though I read on here somewhere to add borax and stabilizer to the skimmer but I have been mistaken! I will go with the TFP way! It hasn't failed me in the 4 years I have had the pool. Thanks jblizzle for linking that page. Its good to read through that again!
 
I have another question regarding chlorine levels and gas heaters...

I always have a problem with brown algae and when it appears it takes a while to get rid of. The heater manual says that FC should not exceed 5 ppm. Is the only way I'm going to defeat Brown algae by slamming the pool which will mean going way above that number? Installing a heater bypass is a must I'm assuming?
 
Nearly all the pool industry still ignores the CYA/FC relationship (which is documented since the 1970s).
That FC of 5ppm would be assuming 0ppm of CYA.
With CYA in the water, there is no concern since the CYA buffers the harshness of the FC.

Stick the the recommended [FC/CYA][/FC/CYA] levels and you will not have any problems.

For reference,
FC = 5ppm with CYA = 0ppm would be the equivalent of a FC up around 40ppm with a CYA = 50ppm
 
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