Newbie to Forum...Looking for help

[fairfieldmania]

Doh...newb alert...so when I added 5 lbs of shock the other day and it didn't dent the chlorine level...I actually added 5 lbs of Dupont Multifunctional Shock with 15% sodium dichloro-s-triazinetrione and 9.53% available chlorine...it is mostly a oxidizer meant to be "added weekly for sparkling clarity.." no wonder it didn't move the chlorine level...so I just added 3 lbs of granular shock...let's see what happens in the morning.....if the level holds...then I/we could focus on ph and alk...

[aylad]

One thing that most folks don't realize is that "shock" is a verb, not a noun--to shock the pool means to raise the chlorine level higher than normal. The chemical companies package various forms of chlorine (and whatever "mystery goop" they want to add) and call them "shock". So...I have no idea what's in the "shock" that you're adding, except some dichlor. I would not add any of that to the pool. What is the ingredient in the "granular shock" that you're using?

I doubt very, very seriously that the bleach is what stained your pool. Bleach is sodium hypochlorite--the exact same thing that liquid pool chlorine is. When you add it to your pool water, it breaks down into chlorine and a little salt water. That's it. Nothing that would stain the pool. Now....the other "multifunctional shock" you're using? There's no telling....

Janet

[fairfieldmania]

I am using ortex algae pool shock...68% calcium hypochlorite (provides 68% available chlorine)...
doubt it was the dupont treatment....as I was exclusively adding bleach when the stains showed up (stains showed up same day pool co had added the alk and CYA, coincidence???)..

i had grabbed the dupont thinking it was shock...only after I had drained the pool and refilled it...meaning within the last few days...

[fairfieldmania]

ok, checked pool this morning with test strips (I know, I know)...and the pool held wonderfully the chlorine level over night...now I just need some guidance on the ph and alk and hardness...I believe the recommendation is to wait until I have the Taylor test kit...so I will wait to report test results until then..and keep an eye on chlorine levels....

[PoolDoc]

One caution: usually people overestimate their pool's volume, but if your dimensions are correct (25 x 50 x 4 + 12' deep end) your volume is closer to 42,000 gallons, with a PF:3

That means one gallon of plain 6% household bleach only adds 1.5 ppm of chlorine to your pool, and that one pound of stabilizer only increases your CYA level by 3 ppm.

[fairfieldmania]

sorry...rushed those in yesterday....dimensions

41 L x 22 W (long part of L)
20 L x 18 W (short part of L)
3' deep at shallow
8' deep at deep end

[PoolDoc]

OK; 38,500 gallons.

[fairfieldmania]

ok...we seem to be on two different pages....I am using this website....

http://www.poolandspachemicals.co.uk/volcalc.htm

take each part of the pool as two rectangles....

first rectangle...21 x 22 x 3 (LXWXD) = 10367 us gallons
second rectangle....20 X 18 X 8 (starts at 6 ends at 8) = 18850 us gallons

total- 29,000 gallons...take out the steps...curves of walls, etc...about 27,500 gallons...can you walk me through your calcs....in the mean time, I will try to find the pool info through the packet we were given from previous owner...