Hi,
I'm from Australia and currently building a pond of approx 250ltrs. The pond is at the base of a rock retaining wall (approx 1.5metres tall).
I'm pumping the water from the base of the pond, to a filter i've made at the top of the retaining wall, and then out and flowing over the retaining wall to make a waterfall.
Currently i have a cheap AC submersible pump (2500l/h) thats rated to a head of 2.3m, it works fine however the power cord isn't quite long enough to reach the outside power point, i have to use an extension lead, and eventually i want to run it all in conduit and put some pebbles over the top, which would require me to extend the power of an already potentially unsafe concept (submersed 240v).
From what I've researched, my two main options are:
1) a 240V AC pond pump that has a long enough power cord (around 5 metres).
2) a 12v bilge pump & transformer to connect to the power point.
Solution 1 is the most straight forward, but the most unsafest due to 240V, i'm guessing i'd need some kind of circuit breaker aswell.
Solution 2 is safe(12v), easier to run wires, but my concern is are bilge pumps reliable to be run 24/7 and they seem less economical.
Any help of finding a pond pump solution that is safe, a head of atleast 1.5metres and be quite cheap to run (< 50watts) i'd love to hear about!
I'm from Australia and currently building a pond of approx 250ltrs. The pond is at the base of a rock retaining wall (approx 1.5metres tall).
I'm pumping the water from the base of the pond, to a filter i've made at the top of the retaining wall, and then out and flowing over the retaining wall to make a waterfall.
Currently i have a cheap AC submersible pump (2500l/h) thats rated to a head of 2.3m, it works fine however the power cord isn't quite long enough to reach the outside power point, i have to use an extension lead, and eventually i want to run it all in conduit and put some pebbles over the top, which would require me to extend the power of an already potentially unsafe concept (submersed 240v).
From what I've researched, my two main options are:
1) a 240V AC pond pump that has a long enough power cord (around 5 metres).
2) a 12v bilge pump & transformer to connect to the power point.
Solution 1 is the most straight forward, but the most unsafest due to 240V, i'm guessing i'd need some kind of circuit breaker aswell.
Solution 2 is safe(12v), easier to run wires, but my concern is are bilge pumps reliable to be run 24/7 and they seem less economical.
Any help of finding a pond pump solution that is safe, a head of atleast 1.5metres and be quite cheap to run (< 50watts) i'd love to hear about!