Hot water lag time

[DIY]

My house was re piped a few months ago.The hot side was upgraded from 1/2" pipe to 3/4" CPVC all the way to the water heater (total 3/4" pipeing @ 25').
After getting advice from this site and some local plumbers I understand that the upgrade in pipeing size is causeing the lag time of getting hot water at a fixture @ 30+ seconds not to mention the water waste.Would a replace of 1/2" CPVC on the hot side, only from the water heater (@ 5') to where the pipexits the house fix this problem ,or at the least reduce the lag time? I know a recirculation is another way to fix this, but i do not want to got that route at least not yet....

If this helps @ 6' of 3/4" CPVC pipeing on the hot side is exposed to the outside,but insulated. @ 12 to 15' of that 3/4 CPVC pipe is uderground also insulated.
Big thanlks to all!

 

[WV Hillbilly]

I wouldn't think replacing 5 feet of 3/4 with 5 feet of 1/2 would make a significant difference .

 

[Sponsor]

 

[Jimbo]

3/4 CPVC is not much bigger than 1/2" copper.

 

[DIY]

Thanks for the reply Jimbo and hillbilly. So,what about replacing all hot side 3/4" CPVC to 1/2" CPVC (@ 25' total) instead of just the 5'?I know a 1/4" is not that much of a differnce in ID pipe size,but apparently it makes a 30+ second difference in the hot water delivery time. Sure it can be lived with...,but hey if i can make it right by replacing to smaller pipe i will try to. The previous galvanized clogged up pipe on the hot side was 1/2" and it delivered hot water almost as soon as a faucet was opened.

 

[NHmaster]

I doubt you would see a real big difference there.

 

[DIY]

Thanks nhmaster. What would be the remidy for this than? I mean as i stated i used to get hot water at the faucet with the older galvanized 1/2" almost as soon as the faucet was turned on. Maybe i asked an un answerable question... Thanks to all!

 

[NHmaster]

You might try removing the restrictor disc in the faucet to allow more flow to come through faster.

 

[DIY]

hot water lag

Thanks nhmaster. What would be the remidy for this than? I mean as i stated i used to get hot water at the faucet with the older galvanized 1/2" almost as soon as the faucet was turned on. Maybe i asked an un answerable question... Thanks to all!

*remidy remedy*