Homes of this age may not have had materials like pressure treated lumber to deter some of the pests and they can weaken structural members over time.

It appears the bond market continues to call BS, remaining dubious that inflation will come down rapidly (or potential labor market weakening).And those traders may be right, at least for now.Fed Fund futures are now pricing in ~4 rate cuts in 2024, down from 6+, which it has fluctuated around the past few months.

Keep looking and don't weaken.

Glue takes longer to cure under 40 degrees and existing fittings such as elbows and couplings can be weakened with the cold. 

Despite the positive figure, high inflation over the past few years, increasing interest rates, weakening national economy, and years of record rent growth have made residents very price sensitive.Supply-side pressure and slowing demand have led to limited rent growth, which has been flat, changing by only 0.2% over the past year.

These will fail and FHA/VA appraisal because being hollow, they'll weaken and collapse in a house fire. 

As the dollar weakens and rents rise your loan payments will be easier and cheaper to make in future years.

Unfortunately, the brass Kitec fittings allowed a chemical reaction to take place which eventually weakened the fittings causing them to fail.

Water damages can lead to weakened structure and mold issues in the future.

@Melonie Dickson - as earlier posters mentioned, the inspection contingency weakens your offer.