@Olliesshop, sorry we missed your questions. We have not tested this brand and cannot comment on it’s compatibility with the flow meter. However from looking at it, I do not think it will work as it needs to convert from PVC (Iron Pipe Size) x CTS (Copper Tube Size).
When using the Sharkbite fitting, the White Collar side fits Sch. 40, 80, 120 PVC and also can be used on IPS CPVC Sch. 40 and Sch. 80 pipes (this is the side that fits the Rachio Flow Meter). The Mustard [Gold] collar side fits CTS Copper, PEX, CPVC or PE-RT pipe.
@nmstough – This fitting is intended to be used between 3/4" copper and 1" copper for the 1-inch transition pipe. As mentioned above, the fitting needs to convert from PVC (Iron Pipe Size) x CTS (Copper Tube Size).
This is detailed in the 3/4" Copper Installation Instructions:
This fitting is not listed in the installation instructions; we recommend Sharkbite UIP4020
Would you be willing to share a photo of your installation? Based on that fitting, sounds like it was sweated onto the 1" copper transition pipe?
I know you’ve been dissatisfied with our installation instructions/recommended fittings; other options are available as you’ve elected to install. Nevertheless, I stand behind the installation instructions my team has spent countless hours testing and researching to create a simple, affordable DIY installation for most homeowners.
I hope you enjoy the features and data the wireless flow meter will provide!
Disclaimer: Rachio recommended fittings and installation steps are outlined at Rachio Wireless Flow Meter FAQ (see step 5). Using any installation methods other than those recommended could damage the Wireless Flow Meter or void the warranty. Using glue of any kind will damage the flow meter and is NOT recommended.