Drainage under way

 We are harvesting, with Harlequin tanks,  our rainwater to irrigate the garden

And the patio ready for drainage

The hole

Into which the treatment plant goes

Rather like this

And the drainage field awaiting the herringbone of trenches filled with gravel for the perforated pipes

Half way after a weekend of rain - draining well

And with the herringbone pattern of pipes

And the other half