I found out that my main water line coming into my house is 3/4". I had already bought 1" pipe so I put a converter from 3/4" to 1" and ran the lines to my water heater, whole house sediment filter and water softener which all have 1" direct lines in. It then goes into all 3/4" pipes from there. My question is: Should I remove all of the 1" pipe? I've been told that going from a smaller pipe to a larger pipe decreases pressure, but I've also had a plumber tell me that running 3/4" pipe throughout my house (that replaced 1/2") is much better because it's not all about pressure, but volume as well. My water pressure is ok, but not great (probably due to my water softener and sediment filter). I'm on a community well of about 15 houses. Is there going to be a benefit or will I see a difference positively if I switch to all 3/4" pipes? Any help would be greatly appreciated!