i would suggest jebao dc pumps..i have one dc1200 and a dc3000 and both of them are running flawlessly for a year now and the noise is 0..only at 100% you might hear a little bit..and what is sweet about them you can dial down the rpm..i run my pumps at 20% and 60% so you ddont have to mess with valves to put pressure on the pump...plus the price is very good.
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