eichacsj wrote:
Wow all the OP wants is pump suggestions stated he wasn't looking for conservation idea's.
OP, same as you, if I am taking a shower and the wife is doing dishes I want the same pressure and not burned. I switched my OEM pump for this one http://www.amazon.com/FloJet-04325143A-Pressure-4-5-GPM-12-Volt/dp/B000O8F1SY/ref=sr_1_10?ie=UTF8&qid=1458847824&sr=8-10&keywords=flojet+water+pump
It was my first upgrade when I bought the new TT and I had the same one in my old TT. It ramps up on speed to meet the demand. It is only 40 PSI but seems to be all that is needs because the flow to devices (all turned on) are the same if I am on pump or city.
And as others have pointed out......it isn't so much about the pressure but the flow. And flow is limited to the size of plumbing wi=hich is 1/2"
YOUR Flojet is 4.5 GPM (MAX) at 40 PSI.
Shurflo 4048 is 4 gpm 55 psi
Shurflo 4004 is 3 gpm 55 psi
All three are 'standard' rv pumps.
Which based on OPs desires/wants are not enough.
Some folks like to make mods.....then more mods to account for mods made etc.