Review on ⚙️ Efficient Everflo EF5500-BOX 5.5GPM 12V Diaphragm Pump - 1/2 FNPT Connection, 5.5 GPM: Product Review and Features by Chris Willis

4 stars because I've only used it once. Update after 10 uses. So far, so good. The delivery was faster than expected, thanks. I used this to replace a 7gpm open box pump that had broke. I didn't know it was broken until I went to the field and sprayed SH all over. I went past the 30 day grace period when I installed it so I couldn't go back. I found this pump on sale for $99 and it works great. Believe it or not, I wash gently through a 250 foot 1/2 inch PVC spray hose and it does the job just fine. 7 GPM obviously had more flow but this one works which is why it's king now.