Browse Forums General Discussion Re: Modify depth of stormwater pit 3Feb 22, 2021 5:18 pm I've tried to attach a photo (which is essential to my question in this post). It doesn't appear anywhere. Can anyone see the image attached? Re: Modify depth of stormwater pit 6Feb 24, 2021 6:49 am The do come smaller AFAIK, which translates to shallower. Though that also translates to less capacity. Given the level of rainfall during some of the storms Brisbane has seen in the last decade, I'd question whether getting a smaller capacity pit is a good idea. Is it just that you don't want to dig Or is there another driver? If it's just aesthetics, id move on and start digging. There are tools that can be useful when needing to dig holes for these pits (like a post hole digger/auger) that will take some of the effort out of it. You can hire them from Coates. Dark matter scientist, can breathe underwater, mind reader and can freeze matter just by willing it. Trust me, its in my sig. Re: Modify depth of stormwater pit 7Feb 24, 2021 8:19 am Noname The do come smaller AFAIK, which translates to shallower. Though that also translates to less capacity. Given the level of rainfall during some of the storms Brisbane has seen in the last decade, I'd question whether getting a smaller capacity pit is a good idea. Is it just that you don't want to dig Or is there another driver? If it's just aesthetics, id move on and start digging. There are tools that can be useful when needing to dig holes for these pits (like a post hole digger/auger) that will take some of the effort out of it. You can hire them from Coates. The reason for wanting a shallower pit is because I want to minimize the volume of residual water staying in the pit after a rain event is over. Re: Modify depth of stormwater pit 8Feb 24, 2021 8:26 am The reason for wanting a shallower pit is because I want to minimize the volume of residual water staying in the pit after a rain event is over.[/quote] And I'm guessing you might be wondering then why use a pit in the first place? Originally I wanted to use a drain but since I have a very small amount of fall to the street over a long run, I needed to find the shallowest drain to "save" as much drop as possible when connecting into the 90mm pipe. I found by tapping into the side wall of the pit for the pipe connection I was able to "save" drop space. I also wanted a very wide drain (i.e. 560mm wide X 560mm long) to make the task of grading the land into the drain easier (aiming for a bigger target), but drains don't come in such a size as far as I could find. Re: Modify depth of stormwater pit 9Feb 24, 2021 9:48 am id imagine that with the wide pits, evaporation will take care of the residual water relatively quickly in Brisbane weather. if they are too shallow, then they would not operate as per design, which is to catch and hold silt from entering the main system. I think you're over thinking the actual design of the products rather than thinking about how to best to install the designed and tested products into your landscape. Dark matter scientist, can breathe underwater, mind reader and can freeze matter just by willing it. Trust me, its in my sig. The distance between my DEBs varies from 4.1m at the narrowest to 8.1m at the widest. 5 27494 Hi, only for walking. It is a narrow 1.5m paved area next to house. 2 5562 Thanks for that, the PVC pipe is still about 40cm below ground level and it sticks out of the sand with no end cap or anything on it just open pipe, is this the finished… 2 10610 |