Haha, this question is interesting. Why not look for Shuishui's body after the reincarnation of Uchibo Shoko Asahara's filth, and then you can use other gods indefinitely? Actually, Uchihiro Shoko Asahara knew nothing about stopping water and its special ability. Even if he could stop water through metempsychosis, he could not shorten the cooling time of other gods. Let's explain it in detail below.
Uchibo Madara had left Muye Village for a long time before his death. He doesn't know the people inside the clan, and he doesn't know the special ability of other gods to stop water.
In fact, there is still a big age gap between Shoko Asahara and Shuishui, and because Ban has defected from Konoha Village for a long time, I don't know what outstanding role the successors of Uchibo's clan have. In other words, Uchibo Madara didn't know about Xia Lingen's special abilities, the kaleidoscope of water and water, and the place where water and water died (members of Uchibo clan were extinct by skunks and natives after water and water died).
Therefore, it is impossible to have the condition of sewage recycling to stop water supply after sewage resurrection. First, it is impossible to complete the condition of collecting the water-stopping part of body tissue. Secondly, under normal conditions, the role of sewage reincarnation is to keep dead. At that time, one water-stopping eye was taken away by the regiment and the other was given to the ferret. Even if sewage is reincarnated successfully, it is only a blind person. You can't use the powerful illusion of other gods.
The age difference between Uchihiro Madara and Uchiha Shisui is too big, so we don't know the special ability of Saringen to stop water, and Uchihiro Madara doesn't know the location of the dead body to collect the information of the dead body needed for the reincarnation of the filthy soil.
The metempsychosis of polluted soil can't shorten the cooling time of other gods, so even if the spot can control the metempsychosis of polluted soil to stop water, it is impossible to use other gods at will without cooling time.
The power of pollution metempsychosis lies in its immunity to conventional physical output skills and infinite chakra. But in fact, pollution metempsychosis can not avoid or shorten the release interval of saringan skill and the sequelae after use. It takes a long time to cool down after stopping water to start another god, which is not caused by the lack of chakra.
Chakra, whose metempsychosis is almost infinite, can't solve the problem of long cooling time of other gods. The only thing that can shorten the cooling time of other gods in the plot is the cell between columns, and this Uchihiro Madara has also been transplanted. So personally, Spot doesn't need to be reincarnated to stop water, as long as it can find the eye to stop water, but one of the eyes to stop water was collected with soil and the other was destroyed by Uchiha Itachi.
Therefore, it is basically impossible to use other gods in a high probability spot. But in the later period, after Uchiha Shoko Asahara became the pillar force of ten tail, he could open the infinite Harle with stronger ability, so there was no need for other gods.
The cycle of filth can't solve the defect of sharingan's skills. For example, a ferret, even if it evokes evil beauty in the filthy metempsychosis, will be blind. So even if the sewage can be successfully reincarnated and stopped, it will take a long cooling time to start other gods.
Finally, to sum up, I personally think that because Spot didn't know sharingan's special ability and death place before he died, the probability of successful reincarnation of sewage in the back was almost zero. Moreover, even if the filth is successfully reincarnated, it cannot shorten the cooling time of other gods. Please forgive me if the analysis is not in place. If you have other ideas, please leave a message to discuss.