Landscape drainage - catch basin required?
#1
08-15-16, 04:14 PM
Landscape drainage - catch basin required?
Hi,
I need to add some drains which will be in concrete (concrete yet to be poured).
The original builder installed a few 6" catch basins around the house but most of these were in dirt.
I looked at the NDS 6" catch basin and it seems like overkill vs. just using a 3" grate on 3" PVC pipe. I know the purpose of a catch basin is to hold debris which could cause clogs but I have 2 existing grates in concrete and no way they can be pulled of the basin - perhaps if I broke it and then replaced it.
Is it OK in terms of code to put a 3" grate on 3" vertical PVC pipe?
I did the run off calcs and I only need 5 gals per min or so.
What I don't understand is why the home centers have a large selection of 3" and 4" PVC fittings but no 3" PVC pipe. Any idea where to buy 3" PVC pipe?
Thanks
I need to add some drains which will be in concrete (concrete yet to be poured).
The original builder installed a few 6" catch basins around the house but most of these were in dirt.
I looked at the NDS 6" catch basin and it seems like overkill vs. just using a 3" grate on 3" PVC pipe. I know the purpose of a catch basin is to hold debris which could cause clogs but I have 2 existing grates in concrete and no way they can be pulled of the basin - perhaps if I broke it and then replaced it.
Is it OK in terms of code to put a 3" grate on 3" vertical PVC pipe?
I did the run off calcs and I only need 5 gals per min or so.
What I don't understand is why the home centers have a large selection of 3" and 4" PVC fittings but no 3" PVC pipe. Any idea where to buy 3" PVC pipe?
Thanks
#2
08-15-16, 05:04 PM
Do you really want catch basins?
It is better to drain the water away from the house on the surface. You don't want dry wells beside the house foundation under catch basins. Water in such dry wells will easily get into your basement.
In non-freezing climates, gutter downspouts can go into underground pipes that drain by gravity away from the house and ultimately go somewhere that won't back up the drain pipe if it fills.
It is better to drain the water away from the house on the surface. You don't want dry wells beside the house foundation under catch basins. Water in such dry wells will easily get into your basement.
In non-freezing climates, gutter downspouts can go into underground pipes that drain by gravity away from the house and ultimately go somewhere that won't back up the drain pipe if it fills.
#3
08-15-16, 08:35 PM
I meant the small catch basins that attach to 3 or 4" PVC pipe. The 3" pipe is already there for the gutters. It drains to the street. I would add drains to the existing 3" pipe.
