How to lower this storm water grate?

[BenT]

 

hi all , I'd like some suggestions  on how to lower  this storm water grate without having  to build  the soil up as I don't want any more slope .thanks.

 

 

[MitchellMc]

Welcome to the Bunnings Workshop community @BenT. It's terrific to have you join us, and many thanks for your question about lowering your stormwater drain.

Lowering the pit would be an incredible amount of work involving removing and re-installing the pit at a lower height and then adjusting the pipework to suit. If you did go to the effort of lowering the pit, there would then be quite a drop-down from your patio onto it. You might like to consider levelling your yard instead, as a level pit will never really sit right on a sloped surface. This would involve installing sleepers, if required, around your fence line to retain the additional fill, and you'd then add soil to the area. That way, your pit would be at the correct height, and you'd have a level yard.

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.

Let me mention one of our knowledgeable members, @TedBear, to see if he has any ideas.

Mitchell

[TedBear]

Thanks for tag @MitchellMc.

I have to agree with you, it would be a lot of work to actually lower the pit... I can't see any other solutions than those you've suggested.

[Sharonf]

Hi Mitchell as this is an old post not sure if you will see my question if we were to reduce the height of our drainage pit via your above method i.e. 

“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.”

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]

Welcome to the Bunnings Workshop community @Sharonf. It's brilliant to have you join us, and many thanks for your question about adjusting a pit.

The pit in the original discussion is plastic. For a cement pit, it would be more difficult to adjust its height. You might like to post some pictures of your pit so our members can offer some helpful suggestions. Let me know if you need a hand uploading images.

To adjust the height of a cement pit, you'd likely need to use an angle grinder and not a reciprocating saw.

Please let me know if you have any questions.

Mitchell