[Introduction- the law as you can read in the Bible is that seeing blood means a woman can not sleep with her husband for 7 days. Leviticus 18 and 20 and in the book of Numbers. On the night after the7th day she dips into a river. But the custom became that all women think of themselves as a woman who sees blood for more than 7 days. If that would be in fact the case, then she would need 7 clean days, and then go to a river. What I am suggesting is that women ought to get back to the law of the Torah--that is that 7 days is enough. That means whether she sees one day or 2 or three or even 7 full days, she still goes to the sea or river on the night after the 7th day and that is that.]
Seven days of nida seems to me to be enough. A woman sees blood one day or two or even seven straight days, that should count for the seven days of nida. She dips in a river after the 7th day at night and that is enough. Ziva is just not prevalent [seeing blood for eight days or more], and even a straight prohibition from the words of the scribes does not apply unless the reason it was made is common place.--much less a custom that few people keep anymore. It is not that I am looking to be lenient. There are thing I think people should be strict in like going into a river or sea. The "mikve" nowadays is a solid block of concrete and thus a "vessel" and therefore not kosher. [I.e. it can be lifted out of the ground in one piece.]
