Based on the title, you may be thinking this blog is about a large scale toilet retrofit. Well it is, and it isn’t. I recently replaced a toilet in my house with an ultra-low flow .8 gallon flush toilet. How is that considered a large scale toilet retrofit? Well, I replaced 33% of the toilets in my house. On a percentage basis, I’d call that large scale.
The toilet I replaced was considered low flow at 1.28 gallons per flush. Thinking my original toilet was conserving water, and since I was only replacing one toilet, I didn’t think the reduction in consumption would be significant. Well, I was mistaken. On a month over month basis, this one toilet replacement has reduced my household water consumption by 748 gallons. That’s a savings of 14 gallons of water per day (adjusted for different bill period lengths). This is a savings of about $10 per month. That’s about a 16 month pay back. With that short of a return, this is a retrofit worth investing in.