Although you should expect to lose some pond water as a result of splash out or evaporation, losing too much can be a serious problem. Interestingly, the hardest thing about solving a leak is actually locating it. To help you find your leak though, we have put together a step by step guide to finding that leak quickly.
Step 1 – Turn Your Pump Off
The very first thing you need to do if you think your pond has a leak is switching your pond pump off. If you find that the water level is continuing to decrease, move onto Step 3 to continuing looking for the leak. However, if the water remains the same, move on to Step 2.
Step 2 – Narrowing Down The Cause of the Leak
Once you have checked that the leak is not in the main pond area, you need to narrow down the cause of the possibilities that could be causing the leak. The leak your pond has is either connected to the stream/waterfall or the plumbing.
You now need to check your plumbing thoroughly, especially any and all of the joints, to see if the leaking is coming from there. Also, spend some time thoroughly inspecting your stream and waterfall for any leaks.
Often, the problem of leaks in ponds is caused by some kind of plant matter or another form of obstruction increasing the water level and causing overflow over your pond liner. It could be that a stone has settled somewhere it shouldn’t or your pond liner has slipped down below the water level in a section of your pool.
If there hasn’t been raining for a number of days, look closely around the pool’s perimeter for any wet spots. Finding wet spots is a good indication of where you need to look a bit closer to the source of your leak. However, if you are still not able to locate the source of the leak, move on to Step 3.
Step 3 – Check Your Pond Liner
You now know that the leak is actually in the pond itself, but the pond liner. Keep your pond pump switched off and let the leak continue until it stops. If it doesn’t stop and the water level reduces to a dangerous level for the aquatic life in your pond, it is crucial that you move them out and into a temporary locating to ensure they don’t die.
Continue to check around the edge of your pond as the water continues to leak out to make sure there are no rocks that have been displaced or the pond liner has not sunk down. Once the water has stopped dropping, you now need to check the liner along the water level it stopped reducing at to locate the leak.
Be on the lookout for anything that seems out of place or irregularities in the liner – whether it is a tiny pinprick or a large gash in the fabric. If the leak you are dealing with is a particularly fast one, you could also try pouring some milk into a squirt bottle and spray the milk into the water around the edge of the pool.
You will be able to find holes, because the milk will make the water cloudy where there are none and will flow to any holes that are there. This technique is not suitable for slow and gradual leaks.