What product to use for gap between pavers and retaining wall?

[jsbyrnes]

Hi, what product is used for filling the gap between pool pavers and the block retaining wall. The current filling is mossy and becoming compromised.

thanks, Jenny

[Jason]

Welcome to the Bunnings Workshop community @jsbyrnes. We're pleased to have you join us and look forward to reading about all of your projects and plans.

Could we please trouble you for a photo of the area so we can see what you are working with? It will help our members, and our resident Bunnings D.I.Y. experts, provide the most helpful response. 

Thanks,

Jason

[EricL]

Hello @jsbyrnes (Jenny)

Thanks for sharing your question about what product to use on your gap between the pavers and retaining wall. 

One test you can try out is to scrape the surface of the gap and see if moss comes off. As you scrape along you should see either sand or a gap filler of sorts. If the sand is still there, odds are that soil has slowly built up on the surface of the sand causing moss and mould to grow.  

But if you keep digging and there is no sand but just all soil, then it's safe to conclude that soil has slowly filled the gap. If there was gap sand in there it has been already washed away.

However, we'll definitely get a better idea once you've posted a few pictures of the gap. We can then make recommendations on how to proceed.

Eric