M
marsaday
I will be fitting a cellar sump and pump soon. are there any suggestions as to what pump i should buy? any i should avoid?
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all depends on the hole you will be putting the pump in i personally use the ones out of argos Challenge Xtreme Dirty Water Pump 400 Watt at £40 quid they are good value
M
marsaday
i have been told to put it in a black bin liner set in the ground. you cut a hole in the bottom of the bin and the water comes in here.
i have actually bought a cheapo one from b & q tonight for £18 - 50% off. it looks like your common dirty water pump, so i will see how i get on with it.
i have actually bought a cheapo one from b & q tonight for £18 - 50% off. it looks like your common dirty water pump, so i will see how i get on with it.
unless you are on rock, it is best to dig a sump pit and line it with bricks or no-fines concrete
this is to stop the particles of the soil coming into the hole and being pumped out as watery mud. Over time it pumps away the soil under your house and creates a big hole that the house can subside into.
this is to stop the particles of the soil coming into the hole and being pumped out as watery mud. Over time it pumps away the soil under your house and creates a big hole that the house can subside into.
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M
marsaday
i have lined it with 20mm gravel on the base (4") and then up the sides as well.
an american website explained what i should do, so i followed this.
do you think the gravel will be ok at holding back the soil.
i can also come back to the sump in a yr and see if it is disappearing.
what is no fines concrete by the way?
an american website explained what i should do, so i followed this.
do you think the gravel will be ok at holding back the soil.
i can also come back to the sump in a yr and see if it is disappearing.
what is no fines concrete by the way?
No-fines concrete is very porous and open-textured. It is more or less concrete made with gravel and cement, no sand (=no fine material), so that you can see the gaps between the stones.
Ordinary concrete is as dense as you can get it, with every grain of sand coated in cement, and every small stone coated in sand, every large stone packed round with small particles, so there are (should be) no visible gaps or cavities between anything. In reality, you can never consolidatye it perfectly, and it gets porous when excess water evaporates, but the denser you can get it, the stronger it is.
Ordinary concrete is as dense as you can get it, with every grain of sand coated in cement, and every small stone coated in sand, every large stone packed round with small particles, so there are (should be) no visible gaps or cavities between anything. In reality, you can never consolidatye it perfectly, and it gets porous when excess water evaporates, but the denser you can get it, the stronger it is.
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