Continue Septic pumping vs building a new mound?

30 pad Park that is currently using holding tanks for sewer that need to be pumped every week for $2500/month. My question is whether it’s worth putting a mound septic system that’s projected to cost $150k?
Appreciate your advice!

If you have the $150k available, I’d install the system. This is an overly simplistic way of looking at it, but the cost savings basically amounts to a 20% yield. Park owners on this forum would salivate over buying a park for a 20% cap rate. You’ll need to perform some maintenance which will slow the payback but you get the idea