A spider that has a dark brown abdomen, with reddish brown legs, and a light beige bottom with dark brown club like claws could be a wolf spider. It could also be a tree spider.
The spider is called a Woodlouse Spider, named for its main prey. It is totally harmless to humans aside from their semi-painful bite due to their large fangs designed to pierce the exoskeleton of woodlouse. (See related links, below, for a photo and Wikipedia article.)
A beige pool bottom will not make the water look blue. This is because the beige will reflect off the water making it look brown.
Put on a big pair of boots and stamp on it
It would make a light maroon, like a reddish orangish sort of colour
Wolf Spider (venom is not dangerous to humans) or Brown Recluse (very dangerous venom).
tarantula
It is a type of black widow spider
it is a slater-eating spider. got to http://museumvictoria.com.au/Spiders for more information
Acorns are light brown or beige on the tops and the bottom is dark brown.
orb (night) spider
The underside of a lady bug is often a beige or brown color.
It would make a light maroon, like a reddish orangish sort of colour