Search results

How exactly would you measure muriatic acid, is a plastic measuring cup fine or will it melt the plastic?

Yeah sorry the min was actually 30 or less not 20 my bad. I also retested as per the extended directions and still couldn't get a reading. So I added 20 ppm CYA.

Really? Back-washed like maybe 5 times for it to drop to 20. Using the CYA test from the Taylor k-2006, maybe I didn't shake the mixture well enough?

Oh mostly I've been using liquid chlorine, but after several back-washes my CYA was depleted from 40 to 20 or less. So since I needed to lower my pH and add some CYA, I figured trichlor would work well in the situation.

This, http://img220.imageshack.us/img220/7475/dsc0402x.jpg, is aeration which increases pH right?

Thank you guys, this has been a very informative thread for me. I'm going to try and see if adding trichlor tablets after every time I backwash will keep the pH and TA levels appropriate.

The strength of dry acid and muriatic acid won't degrade over time like liquid chlorine will it? Also, how come when dealing with pools its called muriatic acid instead of hydrochloric acid?

Probably every week or so 2 inches evaporate, but I'm not quite sure what the volume of the evaporated water is as my pool is awkwardly shaped. Given that the TA of my tap water is 150, will the tap water increase my pool's TA over time or stay the same? Shape of my pool...

Tap water gave a TA level of 150. So does that mean I'm fine or will I have to add a small amount of muriatic acid every time I refill my pool?

So I tested my water today and my pH was 7.8 and TA 150. I read that you were supposed to add muriatic acid and aerate the pool to drop the pH and TA levels. My question is that will the TA level return back to 150 after I drop it down to around 90? Also, my tap water's pH is about 7.8 so does...