Browse Forums Landscape & Garden Design 1 May 22, 2020 10:50 am Hi, I've built two brick planters in my front yard. One next to me letterbox, and one in front of the house. Both are waterproofed with 3 layers of bitumen paint on the inside of the brickwork and the footing. I have left approx 200-220mm wide in the middle of each footing to allow for drainage. This runs for the entire length of the planters. I have used the sand laying around from my building site which consists of sand and other building rubble (broken bricks, rocks etc). This takes up about half of the planter. The next portion is filled with landscape mix and then mulch at the top. My question is, is the base building rubble/sand sufficient for drainage? I've noticed a few articles online talking about using a layer of rocks (blue metal etc) at the base of the planter to allow for drainage and given one of these planters is attached to my house, I wanted to make sure I have sufficient drainage. Re: Brick Planter Drainage 2May 22, 2020 10:54 am Were are you located. If you are in WA our sand soil drains no problems. If you are in the eastern states on clay soil drainage will be an issue. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Brick Planter Drainage 3May 22, 2020 11:00 am Yep located in WA. Site classification according to the site report is Class A relevant to Australian Standard 2870. It's described as "Most sand and rock sites with little or no ground movement from moisture changes". Not sure if that means anything with regards to my query. Re: Brick Planter Drainage 4May 22, 2020 11:41 am You'll be fine to just fill with sand. No need for gravel. Just make sure the waterproofing on the planter attached to the house is done well. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 2 6396 I would find out how deep your clay base is and depending on the depth install a cut off drain which is more than a normal agi drain. Where the neighbouring walls is… 2 3453 13 7104 |