Underwater cement???


Lo folks,
Got a problem with the outside grid that takes away the waste water from sink and bath, etc......
The outside grid is sunk below ground level by about a foot. Over time water had broke up/worked into/splashed back in the area surrounding the round grid. So the sides have broke way and water is outside the pipe top (the bit with the little round grid on about a foot down)... Jeez..describing it was difficult. Hope you get my drift.
Anyway, I need to know what concrete or mortar is best to use to repair around the pipe opening, the surround of which has water caught in it. Also the sloping side which should funnel any water into the pipe/grid which have broke way.
sorry...I'm finding it difficult to describe... but I reckon whatever concrete/mortar is available would probably have to withstand water and infact hopefully work by displacing the (stinky) water which has gathered around the pipe and never seems to go away.
Bloody hell.. I wish I had used less words, but I aint starting again.
cheers
ginga
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Gingangooli wrote:

You don't need anything special -unless you need something that sets under water. Standard mixes will do nicely. You may want to go for a fast setting mix, so that the sink and bath are back in service as quickly as possible.
--
Sue

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- Turn off taps appliances that feed the drain so that you won't get your work washed away whilst working. - Fill drain pipe with large cloth (old sweatshirt in my case) with peice of string attached. This is to stop crap+cement entering your drains I retreive the cloth if it escapes during the work. I also used a Vax to suck the U trap out so I wouldn't be working with too much water around. - Remove all duff cement, easier if you remove all pipes feeding the drain. - Dry remains/foundation as best as possible. - I used PVA, but I think there are cement bonding solutions to enable my new stuff to stick to old. - I used ready mix cement but added PVA to enable it to stick better. - Apply cement. - Put pipes back but with "polythene bag tubes" attached on end (get suitable poly bag, cut bottom off and attach to pipe with cable tie. Ensure poly bag pipes go past your cement handy work. - If people in house complain no water you can turn it back on and hope you poly bag work holds. - Couple of days later remove the poly bags.
10 years later looked fine.
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