Quick verdict
A rectangular polyethylene storm pit 22 inches long, 14 wide and 24 deep with a fiberglass grate, a debris basket and two pairs of hinges, with no pre-cut outlets so you cut for your pipe. At 24 inches deep it holds a large surge and lets the outlet sit well below the grate, which gives fall to a long drain line. It is for the low corner where a whole slope or several downspouts arrive, not a single gutter.
Strengths
- Twenty-four inch depth stores surge water and allows deep outlets
- Debris basket catches leaves before the pipe
- Fiberglass grate resists rust and sun
- Hinged grate lifts for cleaning
- Cut outlets to any pipe size and position
Weaknesses
- Big hole to dig and a lot of gravel to bed it
- Grate is not for vehicles
- Outlet cutting and sealing is on you
The overall YardToolLab Score is out of 100. Section scores are out of 10.
For the Corner That Takes Everything
Some yards have one spot where the whole slope, two downspouts and the neighbour’s runoff all arrive. A 12 inch basin there overflows before the pipe can carry the water away. RYSIMWU’s storm pit is 22 by 14 inches and 24 inches deep, with a hinged fiberglass grate and a debris basket, and blank sides so you cut outlets where your pipe runs.
This review is based on the listing specifications and on how deep residential catch basins are installed and perform generally. We have not installed this basin ourselves and the brand is a generic importer.
Depth
Twenty-four inches does two things. It holds a surge: a cloudburst fills the pit while the drain pipe carries water away at its own rate, instead of the grate flooding. And it lets the outlet start deep, which gives fall across a long run to a pop-up emitter or dry well. Silt settles in the bottom below the outlet rather than entering the pipe.
Basket and Grate
The basket under the grate catches leaves and twigs; lift the hinged grate, pull the basket, tip it. Fiberglass grates do not rust or warp in sun and are fine for lawns, beds and paths. Anything with wheels needs cast iron.
Cutting Outlets
With no pre-cut holes you choose pipe size and direction. Mark the pipe on the side several inches above the floor, cut with a hole saw and seal with a rubber grommet or construction adhesive. A second outlet lets one pit feed two lines.
Installation
This is a large hole: dig 6 inches wider than the pit all round and 6 inches deeper, lay and compact gravel, set the pit level with the grate a quarter inch below grade, connect pipes with fall and backfill in layers. Two people make it easier. Once in, it is the last drainage feature you will dig for that corner.
Who Should Buy It
- Homeowners with a yard low point that floods every storm.
- Anyone collecting several downspouts into one line.
- French drain builders needing a collection and clean-out point.
Common Owner Complaints
The size of the hole and the work of cutting outlets. Both are the price of capacity and flexibility.
Alternatives to Consider
The Lealan 18 inch basin suits moderate flows with less digging. NDS 12 inch basins come with pre-cut outlets for single downspouts. A dry well handles the water where no outlet exists.
Verdict
Where a lot of water arrives at once, a deep pit with a basket is the right collector and this one does it at a fair price. Bed it well, cut the outlet high enough for silt to settle and the corner stops flooding.
Full specifications
RYSIMWU 22 x 14 x 24 Inch Large Polyethylene Catch Basin with Fiberglass Grate and Debris Basket FAQs
Depth stores a surge during a cloudburst so the grate does not overflow while the pipe catches up, and it lets the outlet pipe start low enough to keep a fall over a long run.
Several inches above the floor so silt settles below it, on the side facing the drain line. Use a hole saw matched to the pipe and seal with a rubber grommet or adhesive.
Dig 6 inches larger all round, lay 4 to 6 inches of compacted gravel, set the basin level with the grate just below grade and backfill with gravel or soil in layers.
No. Fiberglass grates are for lawns, beds and paths.
