The Brew Cabin

Posted: **Thu Dec 06, 2018 10:31 am**

Building a brick catch pit to stop all the soil going to the soak away. Using engineering bricks but as the mortar is going to be in water a lot of the time do I need to use a special mix maybe with pva in it or some waterproofing agent ?

Great site, used it a lot over the years.

Thanks.

Posted: **Thu Dec 06, 2018 11:57 am**

No need for special additives, other than the usual plasticiser. Use a 4:1 mix based on a building sand - basically, a bog-standard bricklaying mix.

Posted: **Thu Dec 06, 2018 1:27 pm**

Excellent, thanks

The Brew Cabin

Catch pit mortar mix - Catch pit mortar mix