Water filtration pump
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Primary Stakeholders and Product Needs
The primary stakeholders and their needs for the product are listed below. The stakeholders are parties that have an vested interest in the product. Consumers, retailers, manufacturers, and shipping/transport were identified as the most important stakeholders in the product.
Consumers:
The consumers are the group of people that purchase and use the product, and therefore have a major interest in the product. As the product is a portable water filter, major target consumer groups are backpackers, and people without easy access to clean water.
- One of the most important functions of the water pump is that it pumps water. Without the ability to pump water, it can't push water through the filter, and thus can't filter water.
- Another important aspect is the drinkability of the water. The pump will need to eliminate dangerous pathogens and bacteria, or else the user of the product could get potentially life-threatening diseases. In addition, since the pump is meant to be used as a backpacking filter, medical first aid may not be readily available.
- The portability of the water pump is important as well, as it is meant to be a backpacking water pump. It needs to be carried, and so having a light product that can fit into a backpack is essential to the consumer.
- In order for the product to compete with similar products on the market, it must pump water quickly and efficiently. The pump can't be too hard to operate.
- The pump must also be cheap in order to be competitive with similar products.
- As the pump is meant to be taken backpacking, the pump must be durable. It should be able to sustain loads that could result from being thrown into a backpack. As having a source of water is vital, the pump breaking in the middle of a backpacking trip could not only be inconvenient but dangerous to the consumer.
- Product lifetime and filter lifetime are both important factors in a consumers decision as well. The longer lasting the product and the filter, the less hassle and cost it is for the consumer.
- Using sustainable materials for the water filter is important as well. The target consumers generally spend a lot of time in nature and appreciate the importance of using sustainable materials and processes in creating the product
- Since the water filter could be contaminated and needs to be cleaned regularly, the ease of cleaning and sterilization of the water pump is very important.
- The product must also be safe, as there are moving parts, and could be a potential cause of injury.
- Finally, the product should work with existing products such as Nalgene and CamelBaks, as many backpackers already have these products, and would prefer to choose a product that works with equipment that they already own.
Retailers:
Target Retailers: Outdoor equipment stores/sport stores (REI, Dicks), Internet
- Cheap
- Sustainable
- Attractive
- Profitable
- Safe
Manufacturers:
- Cheap
- Simple design (few parts)
- Compatible with large scale manufacturing processes (Injection molding)
- Easy to assemble
- Standardized/interchangeable parts
- Safe
Shipping/Transport:
- Sturdy
- Light weight
- Compact
- Stackable
Product Function and Evaluation
Usage
Find the cleanest possible source of water. The intake hose is unwound, and then the intake hose is inserted into the water source. Attach the pump to the water container. Pump water at a steady rate, until container is full. Pull the intake hose out of the water, and pump to clear pump of any additional water.
Mechanical Function
The product contains a lever that is attached to a pump with two check valves. On the intake stroke, the intake check valve allows water through the water source into the piston. On the compression stroke, the intake check valve is closed and the bottom check valve allows water to be forced through the filter chamber. The filtered water is then sent out of the pump.
List of Parts
The following details the list of parts of a MSR MiniWorks EX Microfilter.
Part Number | Name | Quantity | Mass (g) | Subassembly | Function | Material | Manufacturing Process | Image |
---|---|---|---|---|---|---|---|---|
101 | Divert Cap | 1 | 0.5 | Hose Barb | Plastic | Pending Image | ||
102 | Washer | 1 | <1 | Hose Barb | Steel | Pending Image | ||
103 | Spring | 1 | 2 | Hose Barb | Steel | Pending Image | ||
104 | Hose Barb O-Ring | 1 | 0.5 | Hose Barb | Rubber | Pending Image | ||
105 | Hose Barb | 1 | 3 | Hose Barb | Plastic | Pending Image | ||
201 | Hose | 1 | 44 | Inlet Hose | Rubber | Pending Image | ||
202 | Buoy | 1 | <1 | Inlet Hose | Foam | Pending Image | ||
203 | Debris Cage | 1 | 11 | Inlet Hose | Steel | Pending Image | ||
204 | Intake | 1 | 1 | Inlet Hose | Plastic | Pending Image | ||
205 | Foam Filter | 1 | <1 | Inlet Hose | Foam | Pending Image | ||
301 | Piston Cap | 1 | 56 | Piston | Plastic | Pending Image | ||
302 | Piston | 1 | 9 | Piston | Plastic | Pending Image | ||
303 | Piston O-Ring | 1 | 2 | Piston | Rubber | Pending Image | ||
304 | Piston Pivot Sleeve | 1 | 1 | Piston | Plastic | Pending Image | ||
305 | Piston Pivot Pin | 1 | <1 | Piston | Plastic | Pending Image | ||
306 | Handle Pivot Sleeve | 1 | 2 | Piston | Plastic | Pending Image | ||
307 | Handle Pivot Pin | 1 | 1 | Piston | Plastic | Pending Image | ||
308 | Handle | 1 | 49 | Piston | Plastic | Pending Image | ||
309 | Piston Umbrella Valve | 1 | <1 | Piston | Rubber | Pending Image | ||
401 | Top Cap | 1 | 18 | Filter | Plastic | Pending Image | ||
402 | Outlet Cap | 1 | 10 | Filter | Plastic | Pending Image | ||
403 | Ceramic Filter | 1 | 42 | Filter | Ceramic | Pending Image | ||
404 | Carbon Filter | 1 | 34 | Filter | Carbon | Pending Image | ||
405 | Filter O-Ring | 1 | 4 | Filter | Rubber | Pending Image | ||
501 | Filter Body | 1 | 97 | Body | Plastic | Pending Image | ||
502 | Clean Cap | 1 | 18 | Body | Plastic | Pending Image | ||
503 | Filter Gauge | 1 | 5 | Body | Plastic | Pending Image |
References
Cascade Designs, Inc. MSR MiniWorks EX Water Filter. 24 Jan. 2012. Instruction Manual. Seattle, WA.