Martin's CADE S2 1500

skey44 · 2026-09-29T00:01:58-0400

martin.a said:
Cheers!

UV sterilizer did fix my issue. I was losing without it.

martin.a · 2026-09-29T00:49:52-0400

skey44 said:
UV sterilizer did fix my issue. I was losing without it.

Happy it helped you. Fingers crossed it will help me too.

BTW, I finally got sodium metasilicate. I will dose 1ppm of SiO2 today to spark diatoms. But I need silica tester, doesn't sound right to dose without measuring.

Edit: I just bought Hanna Silica Low Range HI705.

shadyraro · 2026-09-29T17:01:10-0400

Why didn't you tee off the UV line using the return manifolds instead of tapping in straight from the return?

martin.a · 2026-09-29T21:33:37-0400

shadyraro said:
Why didn't you tee off the UV line using the return manifolds instead of tapping in straight from the return?

A few reasons:
- Wanted all the return water to be treated.
- Don't exactly like the idea of treating return water and spitting it back upstream from the return pump.
- The unit was not plumbed at all, and as I am to rebuild the whole return piping, I was not inclined to make a permanent installation. I don't like how CADE designed all the plumbing. But I have OCD.

shadyraro · 2026-09-29T23:30:01-0400

martin.a said:
A few reasons:
- Wanted all the return water to be treated.
- Don't exactly like the idea of treating return water and spitting it back upstream from the return pump.
- The unit was not plumbed at all, and as I am to rebuild the whole return piping, I was not inclined to make a permanent installation. I don't like how CADE designed all the plumbing. But I have OCD.

You need to be able to adjust the flow thru the UV via ball/gate valve or a separate pump, the flow thru the UV is minimal compared to your return flow. I can't see how this can work, but I have seen others who have plumbed the UV output water directly back into their displays.

martin.a · 2026-09-30T00:07:18-0400

shadyraro said:
You need to be able to adjust the flow thru the UV via ball/gate valve or a separate pump, the flow thru the UV is minimal compared to your return flow. I can't see how this can work, but I have seen others who have plumbed the UV output water directly back into their displays.

This is a Jebao DCP-10000 pump with a controller. The flow is set to circa about 2,000 L/h. I probably should take the effort and measure it properly.
Water movement in the tank is done by 2 Jebao GMP-40 wavemakers working at about 50-60% power.