1989年，科罗拉多河下游管理局在两个公共住房项目中实施了一个超低容量厕所示范项目。对ULV安装前后的使用情况进行了统计。列出并简要讨论了在公共住房中使用示范项目的优点和缺点。两个重要的发现是:客户的接受度很高，即使是在较旧的住房库存中，也没有记录任何问题。

In 1989 the Lower Colorado River Authority undertook an ultra low volume toilets demonstration project in two public housing projects. Statistics on use before and after installation of the ULVs were conducted. Advantages and disadvantages of using performing demonstration projects in public housing are listed and briefly discussed. Two significant findings are: a high degree of customer acceptance and, even in older housing stock, no problems were documented.