POWER STEERING PROBS !? - HELP !!!

Hi, I found when I got my R33 GTS that the steering wheel was a mission to turn, another member on this site told me that I should top up my power steering bottle until the level was correct.. I did this...and for about a week or so the steering was greatly improved..

But now its all tough to turn again, and the power-steering fluid container needs topping up again !?

My Questions are :-

A) How often should the power-steering fluid container need topping up ?

B) Perhaps there is a leak, and if so where's the leak likely to be coming from ?

C) How can I get my steering to feel as good as when the car was new & how much
approx would that set me back ?

I thought I had this problem sorted but evidently not, also the steering wheel pulls ever so lightly to the left when I drive around 30 to 40 mph......what could be the reason for this and whats the best remedy ?

Hope someone can help

Many Thanks



SKYLINE-NOOB:cheers: