Simer 4075SS-01 3/4 HP Pressure Booster Pump

The Simer 4075SS-01 boost pump caught my attention because it was compact and the its performance fit my requirements. I chose to install the pump after my water filter system as to protect the pump small debris, and put check valves before and after the pump to keep the flow going in one direction. Doing this also keeps from pump full with water during maintenance work with filter changes, and water softener servicing. What I observed with the water pressure regulated to 40 psi, the pump will maintain a steady output of 80 psi. Noise level is quiet, like a soft humming sound (heard from upstairs), and the pump runs smooth, so it never vibrates at all to warrant using flex lines as other installs have recommended. I think with the check valves I placed accordingly there is a 7-10 second delay before the pump starts up. I have the pump mounted on two L-brackets attached to the wall that keeps the pump 12-inches off the floor, its small size freed up space in my small utility closes. The monitor panel is easy to read, there are no numbered fault codes to decipher, it simply tells you power on, pump on, failure, and reset. The power cord with 3-prong plug makes the Simer boost pump plug & play. Overall I am happy with my purchase. Highly recommended.

Highly recommend. Works great. Never had any issues in last 3 years. Better than other expensive pumps like Grundfus which stops working after 1 year.

Easy to install, works just like it's supposed to. Awesome boost in water pressure. Wish I had installed this pump several years ago!

Reasonably price and does the job so you can take a shower and get the shampoo out of your hair. It is actually pretty quiet when it runs

This pump worked great initially to increase our house water pressure, and I was really pleased with its performance. However, after 2 years of use, the pump became incredibly loud to the point where we had to disconnect it due to the noise. I contacted Simer customer support, as the product comes with a 3-year warranty. Unfortunately, I was given the runaround and told to contact the seller for a warranty replacement instead. Now, I'm in the process of reaching out to the seller to see if they will assist with a warranty return or exchange.

It boosted my pressure from 35 to 75psi. Easy install, be sure to put plenty of teflon on the 1” fittings. We put the pump under the house on one end. You can hear the hum of it kicking on from the opposite end of our home. It is noisy. I can’t speak on the build quality since I have only had it in for a week.

So far works extremely well. Low noise level. Truly excellent pressure. I had to install reducer to get pressure from 100 psi to 60 psi in our mountain home. We have private well and after installing all filters the water pressure was week on second floor. Got cheaper pump and the noise was unbelievable : it sounded like someone would drill into the wall. You need pressure reducer on outflow for sure possibly intake. I purchased adaptor for pex tubing x2, pressure gauge , and pressure reducer. Plugs into 110V recepticle. Easy install for an average handyman. Very satisfied. The plate to fix it to support is rather flimsy and came bend on arrival. Something should be fixed considered that this is not a cheap unit.

I'll say this pump definitely does what it's designed to do - this will add a good 35-40 PSI to your water pressure. The listing says it provides "up to" 40 PSI of addition pressure, which made me think this might be a variable speed pump. It's not variable speed. So if you're already getting 50 PSI and you're looking for just a little more, this will bump it up to 90 PSI, which is going to be too much pressure. That's not the end of the world, since you can just install a pressure regulator to limit the pressure to what you want or need. The deal-breaker for me on this is the noise. We had it installed in our garage which is attached to our house - the garage shares a wall with the kitchen. When the thing kicks on, it sounds like an air compressor or something, and we can even feel a bit of vibration. Bottom line, I would say this is a great option if you are at 40 PSI or less and need 35-40 pounds of additional pressure; and only if you have a remote place in which to install it that is nowhere near the main living area of your home because it's LOUD.