QUOTE(pychear @ Jun 11 2020, 03:23 PM)
I am comparing between Scala 2, CM3-5PM1 and Uni E CM3-5.
After talk to some re-seller, they said that Scala 2 is actually having a lower noise level compare to CM3-5PM1? so which one is true actually?
Also been told that Scala 2 having electrical board issue and leakage issue when it first introduce to Malaysia market back in 2017. Have this quality issue being improve? Cause I planning to install the pump on the roof, if there is leakage, it won't be easy to notice.
Understood that the pressure tank that use on Uni E CM3-5 need to check the pressure at least once a year, is this a chargeable service by Grundfos? How much normally will it be? Is is possible to DIY?
1) scala2 and unie E = variable speed pump. so if u use 1 shower, pump run slow. So noise level is low. If u turn on more taps, pump run faster = cm3-5
anyway, grundfos pumps are not noisy at all, just vibration. So, when pump goes slow, vibration also less
2) UNI E, pump air can self diy, use bicycle pump only very ez, if u can climb up the ceiling, 100% u can do it.