NatSol was called in by the National Trust to solve a problem at the very busy lay-by and car park at Pont ar Daf. The site is the principal starting point for walkers going up Pen y Fan, Bannau Brycheiniog. Welsh Water had been concerned for some time about discharges from the old toilet facility which had a septic tank and reed bed. The discharge from the reed bed was only a hundred metres or so from a stream running into the reservoir supplying Cardiff.
As a consequence the facility had been shut and toilet provision was by multiple portaloos.
We proposed a no flush toilet system which we had already installed in the Lake District for a National Trust site. That installation was to protect Wast Water England's cleanest lake. The design dates back to 2012 when we were asked to design a system for one of London's Royal Parks which is a Site of Special Scientific Interest (SSSI).
The Pont ar Daf site is now up and running and seems to be coping well with the high levels of use.
Building design by George +Tomos Penseiri Cyf.