Week 51, Day 4:

• Installing the remaining inspection chambers, connecting up the drains and supporting them in concrete so they stay in position during back-filling of the trenches
• Finishing touches on the Ground Source Heat Pump installation, insulating the remaining fittings and topping up the brine circuit after it’s been running for a while and the automatic air vents have bled out most of the air (with a consequent reduction in operating pressure)

Week 51, Day 4

Drains to the west of the house

Drains to the east of the house