guessing you have the same as me.....
I have found that once the air works out of the lines it gets much better. Takes a long time sometimes for it to get out of the lines to the shower.
There is a twist to being able to hear the pump. Gives you notice in case somebody accidentally leaves a faucet dripping. It has "saved" me more than a couple times.
I can imagine though that an underbed pump would be no good if you have one early riser in the family.... luckily mine is under the kitchen. You can still hear it all over the coach, but I don't find it that bad (once the air is out)
Yes, there are better pumps available.
Also options include:
an expansion tank (smoothes flow + a big enough one will keep enough volume under pressure so the pump doesn't kick on for just a squirt out of a faucet)
vibration isolators under the pump's mounting feet, I have read that some folks have had some luck doing this.
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