Acid Dosing Concentrations

[midlifecrisis]

I installed a peristaltic pump and the injection bill/check valve (Stenner) into my return plumbing. It is a cheaper pump and it is temporally attached to a 12v transformer plugged into a 120 type a outlet attached to my panel. I will make it more permanent and probably move up from a $15 pump down the road a bit as well as add it to a relay in the Easytouch (or just hardware the existing timer)

Currently I'm running full strength, 31.45 MA at a low flow rate of 30ml/m @ 17 minutes to get me to 18 oz I want per day trying to maintain a 7.8 PH. That's based on my average daily additions lately (doing well after some minor volume tweaks). Question - I have read in a few threads of people diluting the acid (I've seen 50/50, and 4:1) and running the pump longer to get the appropriate dose. Is there any benefit to diluting or reason to change from full strength, other than maybe a weaker solution being a bit easier on the tubing and the diluted off-gassing? I realize a dose is a dose as long as it is getting into the pool.

I haven't quite worked out the final design for storage yet but have a few ideas. right now, I've got a hole drilled in the 1gal jug with the tub stuffed in there. The injection Tee is currently after the SWCG but when I put in my last diverter valve next, I will move it to just before the unit to let that MA clean the plates. until then this is more POC

 

[ajw22]

Question - I have read in a few threads of people diluting the acid (I've seen 50/50, and 4:1) and running the pump longer to get the appropriate dose. Is there any benefit to diluting or reason to change from full strength, other than maybe a weaker solution being a bit easier on the tubing and the diluted off-gassing? I realize a dose is a dose as long as it is getting into the pool.

If the pump goes haywaire and dumps its entire contents into the pool before you discover it you will have less of a problem with a 50/50 or 4:1 dilution.

 

[midlifecrisis]

If the pump goes haywaire and dumps its entire contents into the pool before you discover it you will have less of a problem with a 50/50 or 4:1 dilution.

That would be bad…

 

[ajw22]

That would be bad…

It has happened.

 

[midlifecrisis]

It has happened.

I think once I get this ironed out, I will likely will use it only when I travel. I still check my PH and Chlorine every other day so adding 24-20 oz takes an extra 90 seconds. It is the times I'm not here I'm trying to cover, but your comment does give me a moment a pause to consider things like this. Thanks.