Cabin Rough in Help

[Whitehorse2865]

Hi Everyone, thank you in advance for all the brilliant ideas. Need your help. Plumbing (to code) a newly built family cabin in the Canadian mountains. Gets cold in the winter and plan to use it in the winter. Cabin is built on concrete piers and has ~24" between bottom of floor and grade. Floor is 2"x10"s and will be insulated. Need to service a tub/shower, toilet, vanity and kitchen sink. Bathroom and kitchen share an interior non load nearing 2x6 wall. Looking for advice/suggestion on to improve or simplify the rough in plan shown in the pic. Also concerned about the bath trap freezing when using the cabin in the winter (will winterize when not using). Is there a way to combine the drains to reduce the number of floor penetrations? Other suggestions. Thank you for your help.

 

[James Henry]

Nice sketch. I think the best answer is to talk to the local plumbing contractors and plumbing supply houses in that area to find out what construction methods and materials work best for them in that area of the country, They will know what works best. You can also inquire at the local building department because there might be specific code requirements. It's best to try and do it right the first time.

 

[Sponsor]

 

[Jeff H Young]

whether my code allowed it or not I dont run 1 1/2" to sinks or tubs except thier trap arms. Id increase vent through roof according to local practice in snow country as well . I cant really recomend 1 1/2 vents on toilets since its a stupid mistake in my code , and never ever done here in UPC code so ingrained in me but the toilet vent I think is fine in much of the USA ipc code and canada.

 

[James Henry]

some simple changes.

 

[Whitehorse2865]

Thank you for the feedback. Great suggestions.

 

[Jeff H Young]

I wouldnt change all the vents to 2 inch but other wise I like James henrys advice particularly on the kitchen trap arm lower typically they are lower than a lav anyway