I’ve got a mix of equipment, so here’s my take from a few seasons of use. For pumps, I went with a Pentair IntelliFlo variable-speed unit, and it’s been a huge difference compared to my old single-speed pump. It’s whisper-quiet on low settings and has shaved a noticeable chunk off my electricity bill. The only downside is the price upfront, but for long-term savings and flexibility, I think it’s worth it.
For filtration, I use a Hayward cartridge filter. Super easy to clean, keeps the water really clear, and I like that it uses less water than a sand filter. The minor downside is having to disassemble it for a full clean occasionally, but it’s not a big deal if you stay on top of maintenance.
On the heating side, I went with a Raypak gas heater. It warms the water fast, even on cold mornings, and the digital controls make it simple to hit the exact temperature I want. It’s a little noisy when it fires up, but reliability and speed outweigh that.
If I had to recommend, I’d say prioritize variable-speed pumps and good filtration first, then add heating or robots depending on your budget and convenience needs.