How to lower stormwater grate?

Sharonf

Hi I saw in an old post re how to lower the height of a pit drain the following suggestion

 

i.e. the following was suggested by Mitchell 

 

“The only other method of reducing the height of the pit I can think of would be to cut off the top section which retains the grate, remove a section of the pit's height and then replace the top section. If you had a reciprocating saw then this would be relatively easy.”

 

can you please let me know

 

1). once I cut out the segment from the cement pit to reduce the height what would be the best method to reattach the top section that retains the grate 

2).  Would I need a specific blade on the reciprocating saw to cut the segment off the cement pit 

Thank you

MitchellMc

Hi @Sharonf,

For cutting the cement pit down to size, an angle grinder with a diamond blade is ideal as it is designed for cutting through tough materials like concrete. Ensure you're wearing appropriate PPE, including safety glasses, hearing protection, and a dust mask, as the process generates a lot of dust and noise. Work in a well-ventilated area and keep your hands and body away from the cutting line.

Once you've cut the cement pit down to the correct height, if you are reattaching the top section that retains the grate, you could use a strong adhesive or construction cement to bond the top piece back in place. Apply a layer of adhesive around the edge of the section and press it firmly into place. Alternatively, if you need to recreate the lipped section, you can form a new lip using concrete or a similar material. Build a formwork around the pit, pour the concrete, and let it set.

If the cuts and modifications seem complex, it might be best to consult with a professional to ensure it's done correctly.

Just so you are aware, a pit of this size might be owned by the waterboard and they could have positioned it on your property. It would be best to check with them before making any modifications. Also, remember that with a reduction in height also comes a reduction in capacity. So, in a rain event, if you reduce the capacity, it might overflow.

Please let me know if you have any questions.

Mitchell