Questions and Answers for Little Giant WRSC-6 Compact Drainosaur 0.3 HP Water Removal Pump System

A:  Of course local code may require it but it is not necessary for the pump to function properly. I would recommend the use of an Oatey sure vent to help control sewer gasses

A:  Venting is one of the most important parts of plumbing and the least understood. Typically for every drain line there is a corresponding vent line that goes back to the stack. The stack is the main vertical trunk line that goes up through the roof. It is this pipe that allows air into the drain lines so that waste water can flow and more importantly allows potentially lethal sewer gas to vent outside the house. Obviously I cannot see the application nor can I quote code in your state. But what I can tell you is all fixtures need to be vented. I would suggest you speak to a qualified licensed plumber or the inspection authority in your area for specifics on how they want this vented.

A:  No, it doesn't come fully assembled

A:  The pump is fully assembled

A:  It was delivered fully assembled.

A:  This pump is designed to sit on a hard level surface and that could be in a sump pit. But this pump isn’t a sump pump and takes water into the pump through a plumbed threaded inlet in the top of the outer housing. It would not pick,water up from the bottom of the pit like a true sump pump would. If the sump pit never takes water and is dry all the time you could use the space in the pit for this pump. This pump is sized to directly fit under a typical utility sink and that is where I mounted mine. Hope that helps.

A:  I am not sure I understand your question. Normally this unit goes under a sink to act as an ejector, The sink would discharge into this. If you are asking me if you could use it as a sump pump the answer would be no as the unit has no holes for the ground water to enter. Liberty makes a unit that looks like this where the chamber is perforated and you use it as a sump pump. Please see SKU 304876318

A:  Not without multiple connections. It is meant for one sink.

A:  Physically it could be piped to receive the waste water from multiple appliances or fixtures. However the question you are asking is more of a code and best practice issue. In my state and to be more specific, in my town in my state, the inspector fancies himself to be the plumber supreme. As such he chooses to interpret the plumbing code in the strictest way possible. He would reject this out of hand. He would say if all the sinks were full and the washer was running at the same time you pulled the plugs, you would exceed the capacity of the pump and there fore water would back up in the sink or washer. He would call this a health hazard. In reality that confluence of events is extremely unlikely to happen but that is what would be argued and I would fail the inspection. So to be really sure you should speak to either a licensed plumber or the code enforcement official in your area,

A:  Yes. It depends on the discharge volume of water that the pump should handle. My washing machine discharge the water into the basin/sink and from the sink the hose connected to the pump that discharge the water into storm/sanitary system. It works fine and I had a great experience.

A:  I am not completely sure what GPM figure you are questioning but I can say that the pump curve on the specification sheet, ( a PDF of which is on the Home Depot product listing page under "Info and Guides" ) is accurate. The curve indicates that this pump will have a flow rate of 45 GPM at 0-5", 20 GPM at 12.5' and will dead head, meaning flow rate will drop to zero at 16'. In my experience shape of the impeller as well as the volute will have a greater influence on the pump curve than the HP rating of the motor that drives it. For example many grinder pumps will have a curve showing much less of a curve than you would expect but they will rip a towel apart if it gets flushed. However most of the time they will not draw that much current. The current draw will drop off after the unit starts.

A:  At 0-5' of head it will pump 46 Gallons Per Minute. At 10' it will drop to 29 GPM, At 15' the curve shows 12 GPM And at 20' the pump dead heads and flow drops to zero. The pump curves for all the Little Giant pumps are displayed on the Little Giant Pump web site

A:  I don;t think you specifically mean legal or illegal. I think you are referring to Massachusetts odd tax system where they want all manufacturers to apply for and pay for a specific Massachusetts approval for each of there products; even though the same products are sold in every other state and even though Massachusetts does no testing nor provides any value to to its constituents for such consideration. Yes it does. The number is P1-1115-215

A:  My plumber installed one in my home in MA so I'd say yes. I wouldn't install it again though.

A:  Installation services vary around the country. Please inquire at you local store.

A:  I believe the figure you are looking for is 8.9" But just in case I am not correctly understanding your question, the web address of the cut sheet is to follow. Cut and paste it. Then scroll down to page 44 and you will see it.

A:  Make sure the drain is clean where the trap goes in, there's a small access door with 4 screws. Take it and the trap out and clean it. If it hasn't been touched for 10 years, you should take it all apart and clean it off with the garden hose outside. If there's a check valve, it is probably worn out, and needs to be replaced. Otherwise it will allow water back into the tub and the motor will not shut off after pumping out the water.

A:  Makes a lot of noise, or in my case also did not shut off.

A:  Dear Valued HomeDepot Customer, We reached out to the MFG for more information and below is their response. "The WRSC-6 are durable units and don’t have a specific life span. A noisy pump may be clogged on the bottom screen and the switch might need to be repaired. A switch repair kit is 599314 and a replacement pump is 506160. Any question feel free to call technical support 888-956-0000 Mon-Fri 7am to 4:30 Central. "