A: The difference is the flow rate. At 60 PSI the RB750 will move 750 gallons per hour and the HB1000 will move 1000 gallons. The RB750 can be used with 1/2" or 3/4" pipe where as the HB1000 needs 3/4". If you look under the header "Info and Guides" on the Home Depot product listing page you will find a PDF of the brochure which spells out all this information.
A: I would give them a call directly. My guess would be that is a standard size tube that The Home Depot would stock and sell by the foot. So you may not need to buy the tube as a part. There number is 1 800 554 1426
A: Its extremely simple. If you scroll down to where it says "Info and Guides" you will find a PDF of the brochure that explains it. Essentially you place a small float sensor at the point you have determined signifies high water. The sensor is connect to a 85DB alarm, that is powered by a 9 volt battery. If the water reaches the sensor the alarm will sound.
A: A separate pipe than your normal sump. It's best if it can be seen easily outside of the house. If you see water coming out and your electricity is on, you will know your normal sump pump has failed
A: Outside at least 6 to 8 feet away from the foundation wall on a downward grade.
|Brand||Basepump||Liberty Pumps||Basepump||Liberty Pumps|
|Name||725 GPH Residential Water Powered Backup Sump Pump with Water Alarm||Sump Jet 660-1185 GPH Water Powered Backup Sump Pump||725 GPH Premium Residential Water Powered Backup Sump Pump with Water Alarm and Install Kit||1/3 HP Battery Back-Up Emergency Sump Pump System with Alarm|
|Voltage||No Voltage||No Voltage||No Voltage||12v|
|View Product||View Product||View Product||View Product|