Once the hole has been prepared the treatment plant is lifted into the concrete base inside the hole
Backfilling in 200mm layers using a semi dry mix
Laying the 50mm pumped outlet pipe to carry the treated fluid to the wet ditch.
Laying the 10m drainage field before the ditch.
Making good after back filling, almost done
Making good after backfilling top with 300mm of top soil, ready for grass seed.