First step was to remove all the stones from the stream. The stream is quite deep and filled with pea gravel. This serves as a filter for the flowing water.
Here's how it looks with the stones removed.
Lots of palm tree roots growing into the stream. A few roots had penetrated the plastic liner.
Since most of the liner was in tact, I decided to put the hardware cloth (chicken wire) right over it.
Sticky mortar goes over three layers of hardware cloth.
Mam mixed many buckets of mortar.
Here's how it looks with stones and flowing water.
Bai Fern - The elephant fountain back at work.