We’re here outside today in Chester to look at the attenuation tank which supplied for AJC construction. This isn’t the first time we’ve worked with AJC construction, and this is probably the second or third tank for them for the fantastic to work with. The attenuation time that we’re installing is for Kings Moat Primary School. When we came through the area, you could see there was a lot of development and new homes going up. And so it makes sense that they’d want a primary school in the area and therefore an attenuation tank to service these areas. The tank you see behind me is specified at 500 metres cubed. We managed to achieve the net storage volume required, whilst actually reducing the gross overall volume of the tank. This enables less of an excavation to be dug and also less time spent on site, and makes the tank more cost effective. When we received the drawings for this project, we then had to decide on the most suitable crate. We decided on our Ecobloc Maxx crate which allows more crates per delivery, less time taken to offload on site and less space taken on site as our crates are stackable and modular. So when we arrived at site today, we were greeted by an almost complete tank. However, the process to get there was a bit more complex. When our install team arrived, AJC had already excavated the hole and laid the shingle on the bottom, when our install team were then in the excavation, AJC would then offload the already delivered crate, crate, baseplates and endplates to them in the excavation. Our install team would then work methodically throughout the tank putting the crates together, putting the end plates on, and then bringing up the membrane and textile around the sides. They would then cut the holes for the inlets and outlet pipes, and any other vent pipes that are required. Once that is done, they’ll then bring the membrane up over the top and begin to heat weld it. At the point we’re up to now there’s not too much left to do. Our install team will begin to pull the membrane and textile up, and then heat weld the membrane to allow the tank to be watertight. Pipe connections are already in and AJC are beginning to put their pipes onto the connections of the tank. And then after that, pea shingle behind me will be loaded onto, onto the surrounds of the tank, and then it will be back filled with the as dug material. We’re in a really good position on site as we’ve turned up today they’re nearly finished but the guys on site have managed to install 500m³ within three days.
