Do I need to treat my water? Suggestions please.

[Operator125]

I am preparing to scrap my old 3/4 pex-al-pex lines supplying my plate exchanger and H-coil replacing them with 1" pex to up my gpm.
I live in southern Indiana and I'm getting ready to prepare the furnace to the season. I have a KB 125 Hardy with 85 gallon capacity. I installed the furnace in 2014 and filled it with tap water. I am thinking about draining the system before the install and filling with new water. Question is do I need to add a treatment to the new water?
I will cycle vinegar through the H-Coil and the Plate exchanger while I have the plumbing removed to hopefully achieve peak performance.
And advice?

 

[maple1]

Is there a particular reason for draining? If not I'd be tempted to leave it.

Also hoping you are using proper insulated piping

 

[brenndatomu]

I don't have a boiler...do run one at work though...personally, I'd treat it.

 

[E Yoder]

The 304 SS in the Hardy is more tolerant of lack of treatment than some, but I'd still use it. Protects pumps, prevents weird electrolysis issues.
I've never seen a KB125 in action. Would love to see pics.

 

[Operator125]

Is there a particular reason for draining? If not I'd be tempted to leave it.

Also hoping you are using proper insulated piping

No particular reason, just want to insure longevity. I started out with the cheap wrapped lines then upgraded to thermopex in 2018.

 

[Operator125]

The 304 SS in the Hardy is more tolerant of lack of treatment than some, but I'd still use it. Protects pumps, prevents weird electrolysis issues.
I've never seen a KB125 in action. Would love to see pics.

I will post some pics/ videos to give you a look.
I'm very satisfied with the unit. It's become a second marriage. I will probably drain and flush the system then purchase some treatment.