Can someone tell me what the Canadian code requirements are for sump pumps and their discharge lines (I can't really afford to spend ~$150 on a copy of the National Plumbing Code of Canada).
I'm not a plumber but based upon my experiences and others in this forum, I am wondering if the code is adequate to protect homeowners from flood and property damage as I believe is its intent. Specifically;
1. Reliability of pump operation
Given the risk of flooding and property damage if the pump fails I think most people would agree that it should be required to meet high reliability standards, not unlike a circuit breaker. Unfortunately many pumps only last a few years and according to one of the leading manufacturers of submersible sump pumps, their pumps on average fail to operate correctly after a mere 4-7 years (see my post here on reliability - http://www.terrylove.com/forums/show...estal&p=293446).
If a circuit breaker failed to protect your home from disaster because it was 4-7 years old, or less, I think most people would find this completely unacceptable.
I would expect the code to require installed sump pumps to have a 15 year or greater average lifespan/mean time between failure. Pedestal sump pumps are relatively cheap and good ones appear to meet this requirement easily.
2. Reliability of the discharge line
A discharge line can become blocked due to small critters crawling into it and nesting, flooding/ice at the discharge point, and freeze if the only option is to install it above the frost line and it fails to fully empty (due to bellies forming from frost heaving or a slow drain due to lack of vent).
I would expect the code to address each of these common problems (I've experienced 2 of them personally). For example, require a critter guard at the discharge point, or a steep pitch to prevent bellies forming from heaving, or a vent/air admittance valve. These are low cost items.
Given the risk of flooding and property damage if this line becomes blocked, I would also expect a failsafe be required like a discharge relief. Something like this ice guard seems to be a good idea and doesn't appear to be expensive - http://www.clarkebasementsystems.com/IceGuard.aspx