I read everywhere that no swimming should be allowed during break-in...but no reason why given. Can anyone clarify?
IF YOU ARE DOING AN ACID OR BICARBONATE START UP THE pH WILL BEE TOO LOW OR TOO HIGH FOR COMFORT AND COULD BE IRRITATING TO SAY THE LEAST!deanrinehart said:So for us careful toe dippers, it's more to keep your skin on your bones rather than messing up chemistry, etc...
Me get worked up? Never happen!waste said:Gee Waterbear, I'd have thought you might get worked up on this topic![]()
On new plaster right after filling your pH was most likely very high and NOT like 'bath water'. There is a reason why there is not swimming during break in.cobra46 said:Just so no one gets the wrong idea. I jumped in right after filling but before the acid was dumped in so the water was just as safe as bath water. I did NOT touch the plaster for the reasons listed above.
And one small slip and you might have been replastering. Not really a chance I would want to take,cobra46 said:How high do you think my Ph was right after filling? After putting 25k gallons of fresh tap water (mine is 7.8 ) over a 24 period I can't imagine it went up that much before I jumped in.
Curing plaster causes the pH of the water to rise quickly for several weeks as calcium hydroxide (calcium equivalent of lye) is leached from the surface.
I can't imagine that a couple of minutes even at a Ph of 8.2 or 8.4 would be harmful but then again I'm an engineer not a doctor.
There is a good chance the pH is much higher than that on a fresh fill with no acid added. Consider yourself lucky.
Getting out of a pool without touching the plaster is easy. One just has to frog kick their legs, push on the coping and lean forward. Not the most graceful move, it least when I do it, but it works.
It is soft enough to be easily gouged by a pool vacuum, brush, foot, etc. Why do you think brush vacuum heads and only nylon brushes are used on new plaster. In fact, plaster is soft enough for the first year to be damaged by combo and stainless steel brushes!cobra46 said:You make it sound like 24 hour old plaster is soft like play dough. It not. The plaster guys were walking on the plaster (using their special booties) fairly soon after it was applied. 24 hours later it's actually quite hard already.
What kind of startup are you doing and what did the plasterer say (which is important for any warranty you might have!)deanrinehart said:So when is the plaster (Diamond Brite in this case) cured well enough for light traffic...and when is it ok to let the kids bring toys in?
It's three days AFTER no more plaster dust is coming off when you brush twice daily, usually a week or two after filling, but YMMV.deanrinehart said:Normal startup...we're at the 72 hour mark now.
This means you are ready to add the CYA and chlorine!
I don't have the plasterer's instructions in front of me, so not sure if they had any remarks on when you could go in. I don't remember any specific given.