Damn it!!! Went to check the garden this morning to find the bamboo holding the hose that fills the pond had decomposed and snapped. This resulted in the hose outlet entering the pond and creating a siphon which emptied most of the reservoir into the pond. Let me explain the details the best I can...
Tap water is kept 24 hours in a reservoir. From there it is fed into the pond for a couple of minutes everyday using a pump. All is fine as long as the end of the tube is above the reservoir water level.
But if the tube drops down to the pond level, we have a problem. The water will siphon out of the higher level to the lower level until it reaches equilibrium.
That's exactly what happened sometime last night. Luckily the fish were not affected by the siphoned reservoir water, probably coz it was only partially chlorinated having sat exposed for a few hours.
Tap water is kept 24 hours in a reservoir. From there it is fed into the pond for a couple of minutes everyday using a pump. All is fine as long as the end of the tube is above the reservoir water level.
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