Have lagoon, seeking Creature

[imrodee]

Good luck Grace! I've just finished "SLAMing" my pool myself... it wasn't so bad.

Most of the moderators (and some others) have helpful links in their signatures to help you. The folks here will walk you thru the whole process.

 

[GraceLS]

Thanks! BTW what is Easytouch 8 computer?

 

[GraceLS]

Got the TF 100. Here are the results.

FC 27 ppm
CC 0
TC 27 ppm
CYA 70
TA 150
CH 200

 

[linen]

I assume you haven't done a partial drain/refill yet? If not, I bet your glad did not trust the pool store value of 120 for the cya level which would have required a greater than 50% drain/refill to lower.

At a cya of 70 ppm, you are right on the edge of needing the drain/refill. For 70 ppm cya your SLAM value is 20 ppm FC (per poolcalculator.com). Keep it at that level as much as possible.

 

[techguy]

Is your fill water cheap and clean? If so, it may be cheaper to do a partial drain and fill to adjust your CYA then use less chlorine in your SLAM.

 

[jblizzle]

Or more aggressively, Pool School lists the shock level at 28ppm, which are are almost at now. Pick a number between 20 and 28 and try to keep the FC up there as diligently as possible.

 

[GraceLS]

I have plenty of water. Will do drain refill for a while. I feel proud of myself, considering how bad I was at chemistry.

 

[techguy]

PoolCalculator says if you replaced 43% you would be near a 40CYA or you could go down to a 30 for the slam and then bring it back up after.

 

[imrodee]

Thanks! BTW what is Easytouch 8 computer?

It's basically a control panel that you program to operate your pool. (pump, lights, heater for spa.. stuff like that.)

It just makes it a little more "worry-free."

 

[GraceLS]

Envious, Helen. I want to control my pool from my iPad!

 

[imrodee]

I haven't done that (iPad) yet.. maybe someday.

Hope your pool gets better soon..! These fellas will walk you straight thru.

 

[GraceLS]

Replaced about half the pool water (delayed by leaking hose). Results:

CYA 60
FC 11
TA 100
CH 150

 

[jblizzle]

That CYA is reasonable. Now start the SLAM Process.

 

[GraceLS]

I'm off to slam!

 

[GraceLS]

Any suggestion as to how much bleach to put in and how often?

 

[jblizzle]

The poolcalculator.com will tell you that. Have you not read the process? You need to test and adjust as often as practical, especially when you start.

 

[GraceLS]

I read everything three times. Having hard time translating to actual measurements. Sorry for the stupidity.

 

[jblizzle]

Have you used the poolcalculator yet?

I was going to give you some numbers to make sure you got the same answer to raise the FC from 11 to shock level of 24ppm, but your pool volume is not in your signature.

Please add your pool details to your signature and location to your profile as described HERE as it will help us help you.

 

[GraceLS]

10k above ground vinyl. I changed my sig and hopefully it will update.

 

[jblizzle]

OK, so what do you get for the amount of bleach intially required?

I get 196 oz of 8.25% bleach to raise from 11 to 24ppm. After that you will need to test and change the NOW number to whatever the new FC reading is.

Be sure to adjust the pH to around 7.3 before starting, but the FC must be < 10ppm for the pH test to be valid.