Established 1995
how to: submersible pumps
 
Although this website constantly preaches the use of a bottom drain and external filter, the fact is that the majority of ponds utilize a submersible pump

Even though something may be fundamentally incorrect, there are better ways to do "the wrong thing"
Well it can't get worse than the setup in the picture left. Lets break it down

Sump Pump
This is a sump pump, designed for intermittent duty - don't expect a long life in a pond application. It is not energy efficient and is also oil filled which can leak

Anti-Kink Hose
Although this appears to be pool hose, it is very similar to anti-kink and both are definitely not recommended. They crack easily and do not allow the use of rubber couplers which which means disconnection is difficult

Poly Fittings
Poly fittings do have a purpose in pond setups but not in this application. Here a high powered pump has its flow dramatically reduced so power and potential water flow is wasted. Buy the properly sized pump to begin with

Ultimately this pump should have a male adapter/pipe/rubber coupler assembly

Pond Filter ?
This setup at least addresses the problem of pump clogging although if your pond is clear, the aesthetics will not be great

This is often sold as a pond filter. Some clients claim that it filters great, they never have to clean it out! The question is, if it is truly filtering, how come there is no call to clean the filter foam?

The fact is, this is not a filter, it is however a effective screen of solids that would clog the pump
Right
This in-pond filter will likely only be cleaned
once a season because it is too difficult to access

It will clog, reduce the flow rate and essentially become non effectual. There may be some nitrification, but with all the debris,
this will be much less effective

This method of connection is far superior to sliding hose over poly fittings as in the above photo

However, this coupling method is not as good as using rubber couplers. When you compare the speed and cost of rubber couplers however, this method is a distant second
     

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