taggart2004@ukonline.co.uk
Fish Fanatic
I would drill a hole at the water-line for the new pipe, such that if the pump fails e.t.c. the hole sucks in air, killing the syphen as it forms. The only way that can fail, is if the hole gets blocked, which should be un-likely To be doubly safe, you could use both systems together
This is a good idea and very simple.
Thanks again Rabbut - your advice is always really helpful.