dpmiller

I'd presume it was above FFL but hang on for confirmation...

you've sorted the loose seam in the asphalt yes?

The Excise boys are pretty active this side of the Irish Sea- North and South- and it's not unusual to see main roads stopped for fuel checkpoints. Where I get red at the pump for the digger, and for testing heaters and things, there is a constant stream of pretty new snazzy cars filling up at the pump. Often tradies that are working daily on a site some distance from home. Seems the losing the car and being find isn't enough of a dis-incentive? A couple of litres for a digger or dumper aint even on the radar...

so have you confirmed that it's even a septic system and not just a leaky cesspit?

surely a cesspit doesn't have any outlet?

still available at the pump, locally.

we had similar to contend with, swan-neck did the job fine

put a radiolink into one of the Aicos to make the whole system accessible, then get a relay box or better still the EI414 alarm interface.

the pre- sown weeds and haz waste residue are free!

Coolenergy pumps are OEM'd by Sprsun. They may brand for other retailers too. You'll not find too many similarities with the big brands as Sprsun use a suite of control gear from Carel whereas Panasonic, Samsung etc do it all in-house

Walabot might do it?

^ like @Temp we find that smart placing of the controls/sensors allows a TS to recover before it runs out of heat, allowing continuous drawoff. And we're on an ASHP...

just be mindful that some have quite a fine mesh grille that you'll need to access and clean, if you don't remove it beforehand...

Willis is a Belfast company... https://willis-heating.com/about/

worth pointing out that this side of the Irish Sea, the Willis heater attached to a vented cylinder achieves superb stratification and allows continuous flow at reasonable rates. Heck, in our last house prior to fitting an electric shower we happily showered using the Willis- turn it on for a couple of minutes to get convection going and cap the top of the tank, then you could draw hot continuously at the rates allowed by the small shower heads of the day