First time Plumbing

[Ramon Estevez]

I’ve always wanted a 125gal reef tank. So I found a cheap one on Craigslist picked it up stand and canopy 150$ Ordered a Crystal 30 from BRS and a quiet one pump 1800gal/hr. I had never plumbed a system before and did a lot of YouTubing and tutorial videos to figure it out. Overall I was proud of my tank but the overflow is very noisy not to mention the plumbing underneath is not at all what I imagined. I will upload pics in a few. My questions are what is an easy fix for noisy overflow and do I need to redo plumbing to get the most out of my sump?

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[Ramon Estevez]

Only one side getting good siphon the only barely draining. No clogs checked. More 90s in the plumbing then I’d like very loud gurgles