Q9. When a septic tank is being constructed, the
What control runs the wash, the rinse, and the spin
length should be at least how many times larger
cycle of a skid-mounted laundry unit washer?
than the width?
Q13. A lyster bag is primarily used for dispensing
Q10. For a tile field in soil composed of clay and
what types of water?
gravel, you should dig a trench of what minimum
The 3000-D diatomite waterpurification unit should
be locatedd what distance above the water supply?
Q11. An eight-seat field-type latrine can be expanded
What water purification unit purifies water by
to how many additional seats?
reducing dissolved and suspended solids?