Depends, but here is rough guide!
If I am washing a car or just using as a general "boat wash" that will not remove wax etc, I just put a capful (=spoonful) in a 2 gal bucket of water- its that potent!. This usually works well on bird and spider droppings too.If there is a greasy stain, you can squirt some directly onto the already wet area.If the deck is severely chalky and stained, bottom pain dustp bgobs of marine sealant, varnish spills etc. you can use undiluted with a stiff scrub brush, but don' let is sit on areas with marine sealant I just put a water-wetted rag over these areas).Actually our Cleanser/Conditioners are even more potent for this purpose and leave anti-oxidant, mildew inhibitor etc in the pores of the gelcoat. However, if you want to use our non-skid sealant afterwards, it is best to finish by use of pink, as traces of conditioner slow down setting of the sealant.As a bilge cleaner, I usually just squirt some pink into the bilges as I am hosing them out.In the head, I squirt some arount the bowl, then rinse through with fresh water- will not affect the neoprene flaps and seals.I have also used pink for general kitchen- laundry use. Use undiluted for removing grease, paint or marine sealant. Use with lots of water (equiv as boat wash) in a washing machine -i.e. about one squirt in lots of water.If you use without much dilution it can take the dye out of your socks.For pet/food stains in carpet- use about 50/50 with water, then rinse up with water and towel dry.To remove paint from carpet (!) use undiluted- again rinse well with water and towel dry.There are several other uses (that's why its ideal for cruisers- you can even clean up marine sealant!)One thing that is important is that use of microfiber cloths reduces the need for pink in the water mix and sometimes a mere trace will suffice.Hope this is of some help- sorry I did not reply right away- Holiday!ThanksJim WI