What is this?

[findog42000]

For the past month I've noticed this brown film occurring in my chlorine floater. See the pic here:
http://tinyurl.com/87rl5f3

The pool is clear, but there is a brownish dust that accumulates on the pool bottom.
FC 5.4
CC 3.4
Ph 7.6
TA 110
CH 320
CYA 100

Any ideas as to what this is?

 

[Samantha_in_AL]

I'm not sure, it could be pollen. I've been getting plenty of it in my pool lately. That stuff is actually the least of your worries right now. Your CC is 3.4 and CYA is 100... that's not good. I highly recommend taking those chlorine pucks out of your pool ASAP. Every one you use is adding more CYA to your water. You need to do a partial drain anf refill to lower your CYA, then start shocking your pool.

 

[jblizzle]

Looks like saw dust or maybe just dust.

Based on your test results, you have significant CC and should be in the shock process ... which is going to be difficult with a CYA of 100 (and likely higher since that is the max on the test ... try mixing 50/50 pool and tap water and then redo the CYA test doubling the results to get a little better feel how high it really is).

 

[findog42000]

I'm not sure, it could be pollen. I've been getting plenty of it in my pool lately. That stuff is actually the least of your worries right now. Your CC is 3.4 and CYA is 100... that's not good. I highly recommend taking those chlorine pucks out of your pool ASAP. Every one you use is adding more CYA to your water. You need to do a partial drain anf refill to lower your CYA, then start shocking your pool.

When draining, is it bad to use the water to irrigate lawn?

 

[jblizzle]

No. Especially with the low chlorine levels you are showing.

 

[Ohm_Boy]

Just don't drain ALL the water at once. Always leave at least a couple of feet in the pool.