B-Dry system

no, those interior drains work great, provided its not clogged.

remember brand new homes now come with under slab drains

Maybe where you live, but not where I live. Builders build them as cheap as possible. Whatever they can get away with, they will do.

If you mean french drains they work, they can be standard on quality homes, I have them, you are much better off to have one then to wish you did. Its a buying point if he hasnt had water problems

Around here all but the cheapest builders routinely install the system in new construction. It is just part of the cost of a basement. I would not consider not using it if I build again.

Colbyt

I would not consider this to be a red flag. If anything some sort of positive since you know the basement isn't getting wet.

I believe a B-dry system is an after built addition. They put in a grove in the floor and insert a gutter. In my opinion, an exterior system is better with and under slab pipe as a backup.

have b dry installed in 2 rental houses .they installed sump pump too to pump out the water. i have had no problems since 1984 when put in. b dry is the most honest and reasonable leak fixers companies around period.they charged me under 1000.00 while others wanted 5000.000+ to dig up the ground on the outside of the basement. .. now i guess if that sump pump went bad id have a problem. lucas

That is one way that they do it in retro-fitting.

They have a different system that is installed in new construction.

A satisfied customer.

Colbyt

new construction around here has code requirement for gravel under slab with corrugated drain pipes leading to sump or low spot outside.

b dry and others accomplish much the same on a retrofit basis

The pipe for the B-Dry system that runs out of the house drains right into the back yard. I would like to build a dry well to hide this pipe. Any suggestions?