interesting job today

[Diamond Pool Finishers]

a pool man went to clean a pool that had been grouted with dark green mapei grout,it was the scum line of the pool the bit at the top out of the water, well he only acid washed it with strong acid and he has washed the colour out of it so it went light green,
i went there today to cut the grout out and re-grout, he hire a fein- machine well it was bizzaza glass Mosaic ,well not recommended!! tiles popping off everywhere they were poorly fixed in the first place to
so now we are going to cut off the whole top band all round the pool and re-render and tile to match existing and re-grout in the green mapei,
so pool owners will have to be careful from now on with the colored grouts!!any thought's

[timeless john]

I'am assuming it was empty and who do they get in to take the water out?
What do they do about the pressures inside the empty pool?

Just thought I'd ask as its not my forte.

[Diamond Pool Finishers]

they pump it out!!
there is no pressure in an empty pool

[timeless john]

they pump it out!!
there is no pressure in an empty pool

Do they have to pay the fire brigade to pump it out or is it part of the pool mechanism.
What about the pressure from the surrounding walls of the empty pool - once the water has been removed does it not allow the water table from outside to push on the walls.
Do they have to leave a plug in - or is that a daft question!

[Alan.P]

LOL, John, sorry but that bought a grin, now I don't know about pools over here but in South Africa the pool recirc pump had a pump to waste option, I just used to pump it out onto the street

[Diamond Pool Finishers]

LOL, John, sorry but that bought a grin, now I don't know about pools over here but in South Africa the pool recirc pump had a pump to waste option, I just used to pump it out onto the street

its called back washing--or pumping to waste

[Diamond Pool Finishers]

Do they have to pay the fire brigade to pump it out or is it part of the pool mechanism.
What about the pressure from the surrounding walls of the empty pool - once the water has been removed does it not allow the water table from outside to push on the walls.
Do they have to leave a plug in - or is that a daft question!

1 just pump to waste ,and dump the water] in there plant room
2 if the pool is built correctly this is not a problem
3 no plug john it should have two sump-pots in the bottom and both have one way valves that let ground water in to the pool if there is any

[timeless john]

The only reason I asked was its not my forte!
Having only worked on a few new pools and small ones at that - I remember a few years ago a job we were on which was effectively a complete refurbishment of a house - and they had drained the pool.
We were asked at the end of out contract to repair some mosaic in the pool - well when we got in the whole floor ( which had an ingress of dirty water) was loose and were advised by the pool maintenance 'experts' that they should have kept the plug in to keep the pressure in equalibrium!
Needless to say we were too busy to get involved!

[Diamond Pool Finishers]

The only reason I asked was its not my forte!
Having only worked on a few new pools and small ones at that - I remember a few years ago a job we were on which was effectively a complete refurbishment of a house - and they had drained the pool.
We were asked at the end of out contract to repair some mosaic in the pool - well when we got in the whole floor ( which had an ingress of dirty water) was loose and were advised by the pool maintenance 'experts' that they should have kept the plug in to keep the pressure in equalibrium!
Needless to say we were too busy to get involved!

no plug john, that was a very-silly thing to tell you, you can end up with a build up of hydro-static pressure that will push the pool shell out of the ground!!then the pool can break it's back and that IS the END of the pool mate

[whitebeam]

A sort of Titanic sinking then

[timeless john]

That's why we walked - I could anticipate a lot of trouble from the look of the mess this customer had brought on himself! I think what you have just described was what had happened.
Everyman to his own - I say!
Thanks for the details - it was a big PLUG!

[Diamond Pool Finishers]

i have seen it a few times,its amazing you would think that the little plastic valve would just blow out of the sump !!
but no the pool can come out of the ground at one end usually by two feet

[Diamond Pool Finishers]

That's why we walked - I could anticipate a lot of trouble from the look of the mess this customer had brought on himself! I think what you have just described was what had happened.
Everyman to his own - I say!
Thanks for the details - it was a big sump !

[deanotile]

I was reading a thread the other week about a Mapei product that restored the grouts but I can’t think of the name of the stuff maybe someone will know what it was.

[united]

I was reading a thread the other week about a Mapei product that restored the grouts but I can’t think of the name of the stuff maybe someone will know what it was.

mapei fuga fresca?

[Phil Hobson]

Do any of you pool guys remember the floated coat method, for pools. Where a 3-1 render was applied to concrete, after priming or bush hammer for key. I worked on a few pools using Shaws twin tiles, if anyone remembers them, they came back to back. So you had to split them with your trowel. We used to fill the frog with 1-1 sand and cement, then bed them in green render Maybe its just me, but I know lots of pools done this way. Still going strong

[deanotile]

mapei fuga fresca?

thats the one

[Alan.P]

The only reason I asked was its not my forte!

Sorry John, if I came across wrong there, just re-read my post and it seemed a bit patronising, sorry if thats how others and yourself read it

[Diamond Pool Finishers]

Do any of you pool guys remember the floated coat method, for pools. Where a 3-1 render was applied to concrete, after priming or bush hammer for key. I worked on a few pools using Shaws twin tiles, if anyone remembers them, they came back to back. So you had to split them with your trowel. We used to fill the frog with 1-1 sand and cement, then bed them in green render Maybe its just me, but I know lots of pools done this way. Still going strong

yes Phil i laid lots of pool surrounds in wet screeds, before Addy became popular

[timeless john]

Shaws twin tiles - I remember them.
Glazed on both sides and as you say split through the middle.
I think the classed them as extruded tiles? Pushed though the machine like plastercine and chopped to length before firing.
Used them a couple of times in the early 70's on the outside of buildings.
1970's that is.