Due to the current drought, and all the supply dams being at alarmingly low levels, we have official water restrictions. A saving of 15% on normal consumption is mandatory, and watering gardens using a hose, or topping up swimming pools, is prohibited. Our large portable puddle was losing water by the day, and I was afraid that soon it would be good only for going paddling with pants slightly rolled up. I thought of a rainwater tank, but we can’t afford one of those at the moment (other than 3 X 150 Litres I have acquired for storing backwashed water).
So, some invention was called for. I decided to find a way to convert downpipe flow into hosepipe flow. A mineral bottle seemed to be a likely candidate for the job.
The nearest downpipe was too narrow for a Coke bottle, but the type with a waist was ideal for cutting down exactly where widths matched. Then I screwed, glued and taped a hose fitting onto the neck, and strengthened the part where it fits over the pipe with more tape.
The first rainstorm was a disaster. Just as the pipe had filled enough to lift the water over the lip of the pool, the pressure blew the whole apparatus apart with a mighty gush of water. Amazing how only a metre or so held in a pipe has so much pressure. Back to the drawing board.
Two little holes a hose-width apart in the lip of the drain, using a masonry bit, and strong wire bent into a ‘U’ as a clip, and I had the answer. Plug the wide end of the bottle onto the pipe, the hose onto the neck fitting, and secure by pushing the U-support over the hose and into the two holes just behind the fitting, and the whole thing stays put even in a heavy downpour.
Over two evenings of thunderstorms, the apparatus added about 1000 litres to the pool, and the tanks are full too.