Follow the instructions and you will do good.
It is made in the USA and as long as you rinse the tube after delivering a fertilizer solution it will not clog. I love it. It is worth 10 cheap diluters that generally don't work.
In past years I have purchased 4 mixers and no product is more well made. The solid brass mixer is designed too outlast any other products. The mixers will last for years and quick to install. Always keep the vacumm inlet free of solid particles and operation will be flawless. The product is well worth the price.
Like this but sometimes gets clogged up when using powders in the mix, we have only cold water to dissolve.Saves a lot of time when liquid feeding.