Should a Shaala of a color be shown to the Rav while it is still moist, or is one to wait for it to dry?[1]

One may bring the Shaala to the Rav whether it is still moist or after it already dried.[2] [However, one is not to delay bringing the Shaala for a very long time due to fear that the color may change in the interim, as will be explained. If the color is very thin and will disappear when dry, one is to try to bring the Shaala to the Rav while it is still moist.[3] To note, that at times a color may contain a false pinkish looking glimmer when moist and when it dries it is seen to be a white or yellow pure color and in such a case one should wait for it to dry to determine what the color really is.[4]]

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[1] Admur 188:4 and so rules Shach; Taz; Teshuros Shaiy; Chacham Tzevi; Tzemach Tzedek Yoreh Deah 126; Tahara Kehalacha 6/8

Other opinions: The Bach, [brought in Shach; Taz and Admur] rules that one must wait to rule on the Bedika until it dries as many times the blood color is tainted until it properly dries and then its true red color appears. Admur and Shach negate this ruling of the Bach as we do not assume Issurim. [Ein Machzikinan Issurim]

[2] One may bring the Shaala to the Rav even while it is still moist and is not required to wait for it to dry as we do not suspect that the drying will turn the color to an impure color as we do not assume Issurim. [Ein Machzikinan Issurim] [Admur ibid]

[3] Shiureiy Sheivet Haleivi; Tahara Kehalacha 6 footnote 10

[4] Received in Shmimush