Price is always a factor. When you are outlaying money for anything, the price is one of the first things that you look at. When it comes to choosing pond pumps though, there are a couple of other things that should be taken into consideration. Take these few things into consideration to get the best out of your pump and pond
Know Your Pond Size
Knowing the size of your pond is very important when choosing pond pumps. If you choose a pump that is too small, you can cause stagnation due to bad water circulation. Low oxygen, sludge build-up and poor water quality can cause an unhealthy pond and unhealthy fish if you have them.
It is recommended that a pump circulate the pond volume once every hour or every two hours at a minimum. For example, a 1000-gallon pond will require a minimum of 500 GPH (gallons per hour) but preferably a 1000 GPH pump.
Dynamic Head Pressure
Sounds complicated, but this is the back pressure that is put into the pump while forcing water through tubing up to waterfall, filter or stream.
If your pond doesn’t have a waterfall, or it is very small, you don’t need to worry about this when choosing pond pumps.
Hand in hand with the dynamic head pressure is the proper flow of water over your waterfall. If you choose a pump that is too small, the water will only trickle over. So, make sure you know what you want your waterfall to look like before you go shopping!
The trick to calculate the right pond pump, calculate the GPH for every inch in width of the top of your waterfall.
- 100 GPH per inch – trickle
- 150 GPH per inch – medium flow
- 200 GPH per inch – strong flow
If you have any questions about choosing pond pumps or any general pool or pond queries, give Pool Spa a shout on 011 793 1381 and speak to one of our friendly and professional staff for more information.