Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Since the pump isnt needed daily, its easy to forget about.  Is there anything I need to check regularly (quarterly/yearly) to ensure the pump is still working?
Document: I have decided that the water hammer is a feature, not a problem, since I am immediately alerted that the main pump has failed and that the backup pump is doing its job. :)6/19/13 update:  Continue to be very satisfied - still working great. Have had a couple power outages over the last year and it worked fine.
That was probably irrelevant as the battery backup pumps have a ridiculously low flow rate.That brings us to the BasePump water powered backup pump. In the year and a half since being installed it has not been needed. Granted, this is mostly in part to some additional grading and sloping I did to the yard to keep surface ground water away from the house. But we still get quite a bit of ground water during a long, heavy, soaking rain. Which is what we had today.
The difference in the 750 and 1000 model numbers are significant in this regard. The 1000 needs a 3/4" main line. The 750 needs a 1/2" main. Check that first, but I believe that to be true.The instructions use a "you should be able to fill this size bucket in this amount of time" which is pretty easy to understand, but I don't think you could be too far below the lowest water pressure to have the sump pump function.
The disadvantage to this is if the main sump pump check valve fails and the HB-1000 pump activates the water will flow back into to the pit which why it's recommended to have a separate discharge pipe. To have some control if the check valve fails I also installed a shutoff valve above the main sump pump check valve in case I needed to change the check valve or prevent water flowing back into the pit when the check valve fails. These type of things, e.g.
You have to run it for a couple minutes to notice a 1/2" drop in water level, but all I need is a little drop in emergencies, so I figure that's all I need it to do.I only dropped a star since I have never HAD to use it, but I'll give it the benefit of the doubt. Plus, I sleep better at night knowing that I have done all I can to protect my basement. If it fails, well at least I tried, right?
Which means it is mechanical and could leak. The float is also rather large, similar to the size of my old backup pump, which may be an issue in small pits. On the other hand, I understand the necessity for something mechanical since there is no electricity in the system. I'll be keeping a close eye on it to ensure the mechanics stay reliable in my pit filled with hard water.Also, the alarm is a separate basic water alarm that runs off a 9-volt battery.
I set ours up so the alarm comes on just before the backup pump starts. This way, if everything is operating as it should, the alarm sounds briefly, shutting off as the backup pump draws down the sump. If the alarm goes off continuously, you'd better get down there to check things out.
I used the flexible hose included in the kit along with unions at the discharge and suction lines so the ejector could be easily removed for future service. The water line had the recommended double check valve backflow preventer on it, and part of the valve is also a union. (Oh, and by the way, when the pump was ordered, I also ordered the double check valve at the same time, as their price on it was better than what I could find it for.
I called Base Products prior to ordering the pump to go over my installation parameters beforehand, specifically the length and diameter of the water supply line and discharge details. Their service guy went over everything in detail and we decided that no special steps needed to be taken. (Excellent customer service experience, by the way; kudos, folks!)
Then pickup the supplies and tools you will need. If you pre-plan the installation, it will not only go smoother, but you will be much happier with the end result. If you hire a plumber, a typical install should not take more than 1.5 hours.
Answer: yes