Filling / repointing around drain

[mr-t]

Some of the point work was degraded around a couple of drain covers on the back patio. I have raked it out, but the gaps are now full of powdery and damp debris. I can also remove the plastic top covers.

I feel they should be treated / filled with something else prior to pointing, but not sure what's best.

I have some Joint It mix to actually do the point work once the drains are good, but could use advice, as I have not done this before.

Cheers

T

 

[Wayners]

Sand and cement is what I'd use.
You can buy it ready mixed in bags from DIY so you just add water.
I'd use wide masking tape or duct tape on slabs to keep clean.
Fill. Leave it a few hours and damp sponge and polish off with a scraper.
Pull tape.
Damp sponge and final polish off really smooth.

You need to keep slabs clean or cement will stain.
I buy ready mixed as it's a consistent colour if you need more.

As for the product in picture I don't know it that will do job

 

[Hugh Jaleak]

If you've remove the hopper on the rainwater gully, will it fit back in with the blanking plate under the downpipe? If so, I'd cut a hole of appropriate size in the plate, and extend the downpipe to discharge just under the plate, to help ensure the water goes down the gully and doesn't splash everywhere, risking soaking/damaging the surrounding area.

Waste pipe, cant tell if that already discharges under the grid, if it doesn't, glue a coupler on the end to extend it below the grid.

Make good around the hoppers with a 3:1 sand/cement mixed with enough water to make it pliable.