Is wiping secretions with water and a tissue sufficient to remove ritual impurity for prayer, even if traces remain on the pad, or must the pad be changed for each prayer despite the financial burden?

"Wadi" is a thick, whitish discharge, tinged with cloudiness, that exits after urination. It invalidates ablution (wudu') and is impure (najis). Discharges invalidate ablution. If they come from the urinary tract, they are impure. If they come from the uterus, they are pure (tahir). If the discharge does not occur continuously throughout all times, one must wait for it to stop before performing ablution and praying. However, if the discharge is continuous, it is considered incontinence (salis). You must remove the sanitary pad you use before every prayer and replace it with something pure, or wash it thoroughly if the discharge is impure, until the characteristics of the impurity are removed. As for the odor and color, they are excused if their removal is difficult.