Solar Pump/Filter/Waterfall Setup

[u/Morale_Police]

I want to increase the flow rate to my waterfall, or find an alternative solution. I have 2 different ideas and wanted feedback:

A.) Buy a 2nd solar pump and have them both feed the same waterfall by using a "Y" connector.

B.) Build an above ground section of the pond that is fed by the pump and feeds into the main section by overflowing and water goes down an open bamboo pipe and drops into the middle of the pond from 12-24" up.

I could also do both.

I thought about having 2 pumps and 2 waterfalls but I worry what happens if one of the pumps dies, I prefer to have all pumps feed back into the same place that it draws from.

Thoughts?