In February 2016 I posted about using a 2 Litre mineral bottle to top up our above-ground pool. It has continued to do so to date. At the moment, the level is a bit low and we are eagerly awaiting the next rainstorm due in a day or so. The original bottle is still in service. The only modifications added were using Pratley Putty to fasten the hose coupler to the neck, and a clamp to go round the downpipe. The spares I made are still languishing in a cupboard.
Refinements added are that the hose is now buried and permanently attached, and that another hose has been fitted running to a drain at a lower level. I ‘plug this in’ as soon as I see the pool overflowing so that ground around the pool does not become undermined.
Even now that the major panic regarding drought and dam levels has abated, it makes sense to save resources and money in this way. I have calculated that if we were lucky enough to have a fair-sized swimming pool the amount collected would have kept that filled in the same way. In fact, for a while I helped top up the very large pool of the next-door neighbours using our system.