Hey guys
Im new and know very little about electrical know how but have done a course years ago in basic electronics so have some idea
anyways i have a spa pool that i have hooked up to a small circualting pump that operates on 8w and i have solar panel that produces a maximium of 10w, it pumps water from my spa through 200metres of coiled black pipe on a roof top of a small pump shed that is 1.2metres off the ground, it is wired direct without any circuits but anyways it works very well to heat and pump the water but only at full sunlite in summer, i would like to add on another 10w solar panel so it could possibly work at low level sun(cloudy) but don't want to cook the pump (I may need to add more coils of black pipe, low level sun = less heat but i can work that out), how do i wire something in to restrict the power to 8w, also how do i wire the solar panels series or parrelal, i want this to be very basic as thats what its about, trying to be energy conservative etc
please focus on how to restrict the the solar power feed to 8w's as thats what i need help on expecailly if you disagee or don't belive for what ever reason that what i am doing works as in prior online forums i have had this result although i have had good feed back about geekzone
thanks for reading