Debris found in water return -- what could it be?

txreap

Well-known member
Apr 29, 2009
73
Austin, TX
CL 3
PH 2
FC 2.5
CC 0
TC 2.5
CH 375
TA 110
CYA 55

Water is clear. Pool has been open all winter with SWG/pump running 4 hours per day, 40% SWG. Extended hours with the time change back up to 10 hours. Today I added salt, acid, stabilizer & bleach to start improving my numbers. When I went to pour acid in pool at the water return jet, I noticed this white, flat particle wedged across the return. As I went to remove it, it broke into smaller pieces. Attached is a picture of the fragmented pieces. Would like to hear folks thoughts on what this might be and how it formed in my pool. Thanks.View attachment 59719
 

YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
9,417
Evans, Georgia
pour a drop or two of MA on a piece and see if it fizzes up. It would be calcium if it does, I believe?

Interesting pattern.. does it match your walls or anything?

Yip :flower:
 

txreap

Well-known member
Apr 29, 2009
73
Austin, TX
pour a drop or two of MA on a piece and see if it fizzes up. It would be calcium if it does, I believe?

Interesting pattern.. does it match your walls or anything?

Yip :flower:
It definitely bubbled when I put a bit MA on it. Before I broke it, it was probably at least $.25 size, but as you can see flat. It is an interesting pattern, but I will have to wait for daylight to see if matches the plaster. I don't think so, but I haven't didn't have a reason to look that close before.
 

txreap

Well-known member
Apr 29, 2009
73
Austin, TX
How old is the pool? It looks like some excess plaster that was caught in the plumbing and finally got pushed out.
The pool is 20 years old, and could use new plaster. I was concerned at one point recently due to the skimmer basket intake seeming to have low intake pressure. I ended up using a pressure bulb to push water back from the pump side to skimmer basket. Seemed to have sufficient flow, but I kept the other valves less than fully open to make sure it was removing leaves, and hoping the pump skimmer would catch whatever broke free. That was probably very late 2016.
 

YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
9,417
Evans, Georgia
Hi YS, my plaster has a smooth finish.

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Hmmmmmm.... I guess I gotta wonder if Richard is correct and it was plaster in the lines finally (FINALLY!) breaking loose and coming out. You've looked at your SWG for scaling, right??

Yip :flower:
 

txreap

Well-known member
Apr 29, 2009
73
Austin, TX
Hmmmmmm.... I guess I gotta wonder if Richard is correct and it was plaster in the lines finally (FINALLY!) breaking loose and coming out. You've looked at your SWG for scaling, right??

Yip :flower:
Today's Readings
CL 5
PH 7.8
FC 3.5
CC 3.5
TC 7.0
CH 425
TA 100
CYA 40??? --added 1/2 bottle of LS Sunday. Will retest later this week.

ok, so sometimes the simplest answer is the right answer. Guess I didn't realize I had gone that long without checking SWG. Check out these two beauties. ---ooops photo exceeds size limit. In length, they each exceed a US. $.25 by a 1/2 inch. In width the quarter slightly exceeded each. SWG now soaking in MA-Water solution for a nearly an hour; still bubbling.